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Comic Book / Juggernaut (Marvel Comics)

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I'm the Juggernaut! Ain't nothin' — ain't nobody — can beat me!

Juggernaut (Cain Marko) is a fictional character appearing in American comic books published by Marvel Comics. Created by writer Stan Lee and artist/co-writer Jack Kirby, he first appeared in X-Men #12 (July 1965) as an adversary of the eponymous superhero team. Since then, he has come into conflict with other heroes, primarily Spider-Man and the Hulk.

Charles Xavier's older step-brother and antithesis, Cain Marko was abused by his father Kurt, leading him to torment his stepbrother viciously and developing a deep-seated grudge against him. When they were both in the army during the Korean War, they took refuge in a cave where Cain discovered a magical ruby placed there by an Eldritch Abomination named Cyttorak that turned him into its avatar — the Juggernaut. Unstoppable in every way but via psionics or advanced magic, the Juggernaut continued to be a thorn in Xavier's side for years, eventually getting trapped inside of the source of his own powers. Since he was let out, he fought briefly on the side of good, before embracing his true evil nature and returning to villainy. Despite being associated with the Brotherhood of Mutants for years in adaptations, he was never officially a member until joining Exodus' Brotherhood alongside his longtime partner in crime Black Tom.


Was rated #19 in the Top One Hundred Comic Book Villains list.

The Juggernaut appears in:

     Notable Comics 
  • Juggernaut (2020)

  • Marvel Disk Wars: The Avengers voiced by Shota Yamamoto

  • X-Men: The Last Stand, played by Vinnie Jones
  • Deadpool 2 as an entirely computer-generated character, credited "as himself". Later revealed that Ryan Reynolds provided the voice and facial motion-capture performance for the character with the voice being digitally altered to be deeper, while director David Leitch provided on-set motion capture performance in shots where Deadpool and Juggernaut interact.

     Video Games 

     Western Animation 

Juggernaut provides examples of:

  • Abhorrent Admirer: He's a fan of Dazzler and has a big crush on her. So he usually goes easy on her if she's on an X-team he's fighting.
  • Abusive Parents: Kurt Marko used to beat him up horribly.
  • Achilles' Heel:
    • He has a weakness to psychic powers (only when his helmet is removed). Also, he has no way of getting around besides walking, so if you can teleport him or trick him through a portal, he's stuck wherever he ends up until he manages to physically walk himself back to where he wants to be. Also, his powers being magic based, powerful entities such as Thor can more or less neutralize them once they've figured out exactly how they operate, Illyana Rasputin has actually been able to permanently remove the Juggernaut power from her brother Peter and Cain Marko himself. The Juggernaut's invulnerability is also magnitudes weaker against magic, so that higher power magic attacks will harm him.
    • As a human juggernaut, his soft tissues, particularly those related to his nervous system, are somewhat vulnerable even without employing magic or psionics. His eyes can be cut by mundane objects should they be sufficiently sharp (as Shatterstar proved) and though he cannot feel pain, strong enough concussive force to his head can render him unconcious. A macroscopic annihilation reaction or gamma ray bust is of course well outside of the range of most X-Men BUT is an energy level The Hulk or Thor could potentially put out and was by the New God Mantis in a DC Comics crossover...which also knocked out Mantis). Atmospheric vibrations, such as ultrasound can also pulverize Juggernaut's brain and leave his body immobile (which is how Nimrod dealt with him).
  • Adam Westing: Lightly so, as the Avengers Academy title revealed that he has become something of a meme in youth circles, much to his exasperation. Despite this, he agrees with a roll of his eyes to yell "Nothing can stop the Juggernaut!" when Reptil asks him to.
  • The Ageless: Due to the gem of Cyttorak, he does not age.
  • Anti-Villain: Very occasionally played as a type IV Anti-Hero. As of 2014, he looks to be staying this way. Even after returning to being the Juggernaut, his goal is to avenge his brother's death, even if his methods are insane.
  • Ascended Meme: In X-Men: The Last Stand: "Don't you know who I am? I'M THE JUGGERNAUT, BITCH!"
  • Attack Its Weak Point: His helmet is his main protection against psi, his primary weakness. This has led to plenty of fights with Juggernaut that consist mostly of everyone distracting Cain long enough for someone to get his helmet off.
  • Bad Powers, Bad People: Because his powers are granted to him by a malevolent extradimensional entity, they actually fluctuate depending on how evil he is at any given time.
  • Badass Boast: "Nobody/Nothing stops the Juggernaut!"
  • Because You Were Nice to Me: During the Gauntlet storyline, he helped Spider-Man after the wall-crawler tried to help him when he was attacked by the latest Captain Universe.
  • Big Brother Bully: To Charles in their youth.
  • Big Brother Instinct: Surprisingly enough, his first return after Charles's death has him wanting to find out who did it to get revenge, explaining that Charles is one of the few people who ever gave him a second chance.
  • Boxed Crook: During the 90s he became one when he brokered a deal to become the CSA's duly appointed bounty hunter. Later he was drafted into an incarnation of the Thunderbolts led by Luke Cage (his powers were on the wane at the time).
  • Breakout Villain: He's one of the more popular X-villains, appearing in numerous games and spinoffs.
  • Brought Down to Badass: On occasions where he has been depowered he still tends to acquit himself well in fights, though the degree to which he is truly ever "depowered" is unclear (for instance, in a 2014 storyline he still retained enough Super Strength to punch Man-Killer through a roof, despite supposedly being stripped of his Juggernaut powers at the time).
  • The Brute: Typically serves this role as this whenever he's on a team.
  • The Bully: In his backstory, where he pretty much tormented his stepbrother incessantly. As time went on he was given a Freudian Excuse to at least somewhat explain his unrelenting Jerkassery.

    This side of Cain was particularly explored in an X-Men Unlimited issue released around the time he was undergoing his first attempted Heel–Face Turn. While attempting to be a big brother figure to Morality Pet Sammy the Squid Boy, Juggs and Sammy cross paths with a group of human kids who torture animals for fun. While Sammy is shocked and appalled, Cain shrugs it off easily with "boys will be boys" sentiments and openly admitting he did the same as a child. In comes Jean Grey, who decides to educate the bullies and Cain via full Phoenix-powered Mind Rape, making them all experience every torture they'd inflicted on an animal from the animal's point of view. While this was treated at the time as a lesson that would stick with Cain for a very long time, later storylines would see him predictably revert to form.
  • But for Me, It Was Tuesday: Basically applies to his role in the Gauntlet storyline, as he's attacked by the latest Captain Universe because he ruined the man's life during a past rampage without ever being aware of it; Cain remembers the fight in question as it was his first fight with Spider-Man, but he doesn't remember the man currently attacking him.
  • Cain and Abel: With Professor X.
  • Character Development: There wasn't much fans liked about the Chuck Austen X-Men era, but one move that was positively received was the development Cain got at the time stemming from his Heel–Face Turn. While the Status Quo Is God Reset Button was inevitably pushed, Cain stayed on the hero side for a good few years.
  • Collapsible Helmet: His newest helmet in the 2020 series can collapse and reform at will.
  • Cool Helmet: Like Magneto, Cain has a helmet that protects him from Psychic Powers. Very handy when your stepbrother is the world's strongest telepath.
  • Cut Lex Luthor a Check: For all that Juggernaut often ends up Worfed, on paper, he's one of the heaviest non-Reality Warper hitters in the Marvelverse. And what does he use his incredible power for? Basically thuggery.
  • Dismotivation: Juggernaut is one of the most powerful beings in the X-Men universe, as his powers aren't mutations so much as a law of physics unto themselves. Despite this, he's still Cain Marko, and his ambitions usually loft no higher than petty thievery, thuggery, and the occasional spot of fraternal bludgeoning. Essentially, Juggernaut isn't one of the big players for the simple reason that he doesn't feel like it.
  • The Dreaded: Treated as this by Professor X in his first appearance, and rightly so. It took all five X-Men, Professor X, the X-Mansion's defenses and the Human Torch lending a hand to defeat Juggernaut the first time. Even then, the heroes were nearly killed. To this day, if he’s not being worfed or a X-Men punching bag, he’s treated with absolute fear.
  • Dumb Muscle: How dumb varies Depending on the Writer. Sometimes he's simply Book Dumb, other times his head's the only thing thicker in-story than his nigh-invulnerable body.
  • Even Evil Has Standards: He's got a fairly developed code of conduct as bad guys go. Theft and property damage might be A-OK in his books, but hurting kids, backstabbing people after they've helped you or hurting people purely for the sake of being a Sadist are all no bueno as far as he's concerned. During the Gauntlet storyline, he was even chosen by the Enigma Force to become the latest Captain Universe to repair the tectonic plate damage he had caused while digging his way out of concrete after his original battle with Spider-Man (albeit after the Enigma Force's originally chosen host preferred to try and vent his vendetta against the Juggernaut rather than complete his assigned mission).
  • Evil Redhead: He has red hair, which matches his armor and helmet, and while more of a greyish character, he's still considered a bad guy.
  • Eye Scream: Was once inflicted on him by X-Force's Shatterstar. Having a Healing Factor, Juggs recovered quick, but boy was he ever pissed.
  • Foil: To his brother Xavier. While Xavier is a paraplegic, telepathic Guile Hero, Cain is an able-bodied, superhumanly strong brute.
  • Force and Finesse: The Force to Black Tom Cassidy’s finesse. Unlike his partner, everything he does is through sheer brute force without any hints of subtlety. His Unskilled, but Strong works hand in wand with Black Tom Cassidy’s Weak, but Skilled.
  • Freudian Excuse: The reason he hates his stepbrother so much is that their father always preferred Charles over Cain.
  • Friend to All Children: Not all children everywhere, but generally he has a soft spot for kids and will pull his punches in battle with them if not refuse to fight them outright. This first cropped up with his befriending of Sammy the Squid Boy, but was later made a running trait during his time with the Thunderbolts and when he gave (surprisingly good) life advice to the kids of Avengers Academy.
  • Giant Mook: Often used this way in the various X-Men video games. He's actually a Starter Villain in X-Men (1993), for example.
  • Good Is Impotent: As noted below, Juggernaut's Power Creep, Power Seep (towards the Seep side) were stated in-universe to be caused by his attempts to find redemption, as his powers stem from an evil entity who wants him to use them for selfish destruction.
  • Healing Factor: It rarely gets brought up, because Juggernaut is almost impossible to hurt in the first place, but his ability to regenerate may even equal Wolverine's. In one famous incident, being reduced to nothing but bones not only failed to kill him, he kept on fighting even as a bare skeleton.
  • Heel–Face Door-Slam: During World War Hulk, the evil god who gave the Juggernaut his powers made him realize that the reason he was losing his powers was because he'd become soft and weak. In response, Juggernaut fully embraced his evil nature and the evil nature of the god who empowered him, returning to (and finally accepting) his true villainous self. But as of 2020, the Juggernaut has once again joined the hero side of things by joining the Punisher Kill Krew and later the X-Men up until Magik turned on him. He's still on friendly relations with his brother Charles despite not being allowed on Krakoa and he's had a moment with the Savage Avengers.
  • Heel Realization: Goes through a twisted version after Charles' death. He decides that Xavier was the only person who ever tried to help him, and wants to make the X-Men pay for his death. He gets a further realization after he decided to go straight and work with online celebrity superhuman D-Cell in taking down the Immortal Hulk. The Hulk admitted demolishing homes and scaring people to death, but that was when he had a near-animal intelligence. Hulk tells Cain that he did the same thing and was conscious of how bad that was plus he only took on the Hulk because he was getting paid. The Juggernaut could only hang his head in shame.
  • Helmets Are Hardly Heroic: He and Magneto are the two main trope codifiers for this among X-villains.
  • Heterosexual Life-Partners: With Black Tom.
  • How the Mighty Have Fallen: The beginning of his Heel–Face Door-Slam begins in an issue of New Excalibur where the Wrecking Crew beat the pus out of him while lamenting how he used to be badass.
  • Huge Guy, Tiny Girl: Often shown beside Nocturne in group shots, foreshadowing their dual Heel–Face Turn. They worked together after that too, with Nocturne becoming something like a replacement Morality Pet to Cain for a while.
  • Immortality: He does not age, he requires no sustenance to survive, he is immune to poisons, disease, and radiation, he can survive as a skeleton, and he has a potent Healing Factor. These attributes, along with his extremely durable forcefield and armor, make him very hard to kill even for other heavy-hitters like Thor and the Hulk, and allow him to go on living for centuries.
  • Immune to Mind Control: Whenever he's wearing his helmet, at least.
  • Implacable Man: He literally cannot be stopped (one of his official superpowers is "once in motion, cannot be stopped" — he took a mystic blast from The Mighty Thor and it only staggered him for a few seconds), he's Nigh Invulnerable, and he officially has "infinite stamina". He never needs to stop. Ever. He doesn't eat, he doesn't sleep, he doesn't feel fatigue, he doesn't even breathe. Once, the demon D'spayr tried sucking all the magic and life away from Juggernaut. He managed to reduce him to a skeleton, but Juggy still kept coming, fueled by pure anger and rage. D'Spayr could have destroyed this skeleton too though, once he got over the shock it was still alive if not for a different Cosmic Entity with it's own grudge against the demon taking notice.
  • Infernal Retaliation: Happens to him frequently, see the page for some of these times.
  • Invincible Boogeymen: The Unstoppable Juggernaut got his name for a reason. Aside from a select few immensely powerful individuals, he is impervious to physical harm. The one way to put a halt to his rampage is to get his helmet off and let the resident telepath subdue him or teleport him somewhere he can’t hurt anyone. Even then he’s managed to come up with counter measures to these weaknesses over the years.
  • Irony: For how unstoppable he is, even the Juggernaut cannot escape the Crimson Bands of Cyttorak, a magical spell that's used to stop and restrain a target and is sourced from the same god that empowers him.
  • The Juggernaut: Not only does he have the above mentioned super-powers, he is literally unstoppable; once in motion, there isn't a power on the planet (and a good deal of the universe) that's supposed to be capable of stopping him. He once took a direct hit from a blast of "mystic Asgardian force" from Mjolnir and it only succeeded in slowing him down for a few moments. And then there was the time when the demon D'Spayr vaporised his flesh and muscles — cue the still-animate skeleton of Juggernaut continuing to come after him. His official superpowers include literally infinite stamina, and no need to eat, sleep, drink or even breathe.
    • This is made even worse in the Fear Itself event: Juggernaut becomes possessed by an ancient being in service of an Asgardian god, The Serpent, and becomes "Kuurth, Breaker Of Stone". In this incarnation he is even more unstoppable. Not only are all his usual weaknesses removed (telepathy and draining his powers did not work and teleporting him away will result in him teleporting back where he was before immediately), the X-Men's attempts had failed so much that Colossus, Magik and Shadowcat had to appeal to Cyttorak himself to remove the Juggernaut powers from Cain and transfer it to Colossus in order to stop him.
    • He gets a similar, yet somehow STRONGER upgrade after he gets his powers back courtesy of Cyttorak at the end of Amazing X-Men. Due to Colossus trying to sacrifice himself by goading Cytorrak into re-empowering him and making him strong enough to kill the god, Cyttorak instead gives the power to Cain. The resulting behemoth is larger, more heavily armored, guarded against psychic abilities even without the helmet, and easily curbstomps the X-men in seconds, with Colossus barely defeating him by sending him tumbling of a cliff, a fate he escapes soon after.
  • Killed Off for Real: In the Ultimate Marvel universe, during Ultimatum.
  • Kryptonite-Proof Suit: He usually wears a helmet that blocks out telepathy, which the X-Men usually work to knock off. After this happened enough times he started wearing a smaller, tighter skullcap under the main bulky helmet for extra protection.
  • MacGuffin: The Crimson Gem of Cyttorak, a relic that imbues whoever holds it while invoking ritual words the power of "a human Juggernaut". Occasionally Juggs has had his power stolen by upstarts who find the gem, to the point of throwing it into deep space once to ensure no one would ever again have that opportunity. Being the manifestation of a malevolent deity, it turned out to be a little harder to get rid of than that.
  • Meaningful Name: Let's put it this way; there's a reason he has the Name of Cain.
  • Missed the Call: It's occasionally stated that Cain wasn't the intended recipient of Cyttorak's power, but that it was meant for Charles Xavier. As one What-If story shows, this is a good thing, as an Xavier Juggernaut killed all non-mutant superheroes, nearly destroyed America and could only be stopped by being launched into space.
  • My God, What Have I Done?: Invoked: The demon D'Spayre, who feeds on, well, despair, was once able to physically manifest on Earth by tricking Juggernaut into thinking he had killed Black Tom Cassidy. Tom was alright but Juggernaut wasn't forgiving.
  • The Needless: The Juggernaut does not require food, water, sleep, or air; he's about as close to immortal as you can get.
  • New Powers as the Plot Demands: He once demonstrated the ability to fire energy blasts from his forcefield, an ability that was never used before. It was never used afterwards either, suggesting it was retconned out of existence.
  • Nigh-Invulnerability: Juggernaut is, to all practical purposes, totally indestructible. While he can still be thrown, knocked back, or hit by blows, he cannot actually be damaged by brute force or physical in nature. Only magic can hurt him physically, he doesn't feel pain, regenerates any damage done to him... he's even got a forcefield he can erect to make himself even harder to hurt.
  • No-Sell: During X-Men: Legacy, when Sinister's Cronus Machine activates and tries to turn Cain into a new vessel for Essex, his Cytorrak given powers prevent it from happening (which, given Cain's lack of a mutant gene might well have killed him otherwise), but needless to say, Cain was pretty pissed.
  • Older Than They Look: Even without Cytorrak, he could pass for someone in his 30's when actually he's Professor X's older brother.
  • Only in It for the Money: Occasionally, when Juggernaut is a hired gun rather than pursuing a personal vendetta, a bigger pile of cash than what his employer has offered can stop him.
  • Perpetual-Motion Monster: He has been stated to have infinite stamina, does not require any sustenance, and can go for months without stopping.
  • Pet the Dog:
    • In his villainous career, Black Tom was the only person he has shown concern.
    • During his Heel–Face Turn phase, Juggernaut has also shown his soft spot for Squid Boy in Chuck Austen's X-Men and Nocturne in New Excalibur issues.
  • Power Creep, Power Seep: His power level depends on Cyttorak's whims. He can be weak enough to be trounced by the Wrecking Crew or strong enough to punch through dimensions. After Magik had removed his powers before the creation of Krakoan society, he was only able to regain a portion of his power by using shards of the crushed Gem of Cyttorak. He no longer has a force field, he's weaker and not as invulnerable and he now has to breathe, but he's no longer at the whim of Cyttorak.
  • Power Loss Makes You Strong: Despite being by all accounts an ordinary human prior to being empowered by Cyttorak, Cain has consistently maintained a level of Super Strength even on the occasions when he has been depowered. He is also consistent in his freakishly large size, which was also a blessing from Cyttorak he should logically lose when depowered.
  • Psychopathic Manchild: Not to the same degree as the Blob, but Cain is somewhat underdeveloped emotionally and, Black Tom aside, seems to have an easier time befriending and relating to children that he does adults.
  • Redemption Rejection: Played with post-Avengers vs. X-Men — it certainly looks like Cain has done this when he turns his back on the new peaceful life he has built for himself to chase after the Gem of Cyttorak again, but as it turns out he's only trying to get it for the same reason that Colossus is, to destroy it so no one else can claim the Juggernaut power. Ironically, in spite of this Cyttorak chooses to empower him once more, making him fall into this anyway.
  • Red Is Violent: He has red hair, and he wears red armor and a red helmet. When reduced to a skeleton, the skeleton was shown to glow red from the red energy of the crimson gem of Cyttorak. He is also a brutish character.
  • Revenge Before Reason: Early in the All-New X-Men days, Juggernaut and Black Tom lure the X-Men into a trap at Cassidy Keep. Juggernaut doesn't particularly care that the team he's facing have no idea who he is or what he wants, save Cyclops. They're Charles's students, and that makes them fair game in his eyes.
  • Rogues Gallery Transplant:
  • Signature Headgear: Juggernaut's helmet is easily the most recognizable feature of his look.
  • Sixth Ranger Traitor: For Exodus' Brotherhood. Turns out he was The Mole the whole time.
  • Sleeves Are for Wimps: Cain's outfits almost never have sleeves.
  • Smarter Than You Look: He might not be book smart, but Depending on the Writer, he can be more than just a meathead. He's usually shown to possess an average intellect, and was capable of creating a metal skullcap to provide additional protection from mental attacks.
  • Status Quo Is God: After having his powers restored by Cyttorak in 2014, Juggernaut was shown to be stronger than he has ever been, to such a degree that the only way the X-Men could 'beat' him was by using the environment to drop him into the ocean and then escape. Despite this, in his next appearance Juggernaut had completely reverted to form as a petty criminal working with his longtime partner-in-crime Black Tom, and seemingly back at his normal power level to boot. Kind of a letdown after all that buildup...
  • Super Speed: Juggernaut's hyper-strong muscles officially allow him to run at top speeds of 110 miles per hour.
  • Super Strength: With it he has immense strength that far exceeds the ability to lift 100 tons effortlessly. Due to the mystical nature of his powers, Juggernaut can increase his physical strength to immeasurable levels with a simple thought when he needs it. In this sense, Juggernaut has the strength-increasing option due his potential to draw on the limitless power of the mystical energy of Cyttorak, which makes him a truly unstoppable force. Juggernaut has been able to subdue through his physical force or knock out several powerhouses such as Thor, the Thing, Hulk and many others. Also, the limits of Juggernauts strength are unknown simply because of the fact it stems from his Cyttorak himself.
  • Super Toughness: He's arguably even more well known for this than he is for his strength. Even without his helmet, armor, or forcefield, his skin and bones are durable enough for him to fight and defeat the Professor Hulk (who is somewhat stronger than regular Hulk's base powers and much smarter, though lacks his ability to increase his strength with anger) while shrugging off his blows. His armor is tough enough for him to take a beating from Thor for a full minute while his forcefield was disrupted. He can transform his civilian clothes into his armor at will and turn objects into new helmets in case his gets removed or destroyed, making it pointless to even destroy either in the first place. He has an incredibly powerful forcefield that is said to be completely indestructible to any physical blow and is powerful enough against energy attacks to take a low level Godblast from a severely weakened Thor (the same attack that at full power can even drive away Galactus). Finally, assuming you manage to get through all of this protection and natural durability and actually harm him, he can easily regenerate.
  • Tranquil Fury: After raging at and dominating a team of X-Men (while depowered!) Northstar finally spits it out that it was Cyclops who murdered Charles Xavier. Cain's response, after all that, is to simply narrow his eyes and drop his hostages.
  • Token Human: Cain was one of the first non-mutant X-villains and has never been strongly invested in mutant rights, yet he is often affiliated with the Brotherhood in adaptations. The X-Men Film Series deliberately changed him from a mystically-empowered man into a mutant to avoid this trope.
  • Use Your Head: He uses this mode of attack. In the Capcom vs. series, it's his one and only Hyper Combo.
  • Unskilled, but Strong: Not much hand to hand skill despite former military service, but he has tremendous amounts of strength and divine support so he doesn’t need much. Thor once defeated him by sacrificing his own god powers to remove Juggernaut's and then casually beating Cain Marko to a pulp.
  • Walk, Don't Swim: This is Juggernaut's default way of crossing water. One of the most famous examples of this was after his first battle with Spider-Man in which he was buried in concrete so he simply tunneled his way into the Hudson River and walked out to sea.
  • Who Wants to Live Forever?: In one What If? story he accidentally caused the nuclear extinction of humanity, condemning himself to a Fate Worse than Death as he had his usual Complete Immortality.
  • The Worf Effect: An oft-Worfed character, due to his great power and somewhat limited intelligence. Gladiator of the Shi'ar Imperial Guard gave him his most classic Worfing, shrugging off a blow from him and throwing him out to sea in a panel so memorable it was adapted into the animated series. Other villains have since tried to piggyback off that panel, among them Post, Onslaught and the Hulk in his Horseman of War and Green Scar incarnations. He was even Worfed by Superman in DC Versus Marvel, knocked down by one punch.
  • Worthy Opponent: Curiously, the Juggernaut has been known to show respect to people who put up a good enough fight against him. Although Colossus and Dazzler both lost their battles against him, they managed to win his respect.
  • You Are Not Alone: One storyline revealed that Juggernaut is an "Exemplar", a mystically-empowered avatar, and that there were in fact a number of other Exemplars in the world. Unfortunately, the other Exemplars ended up being C-List Fodder and this storyline fell by the wayside, but it's obvious parts of it were cribbed from by the writers of Fear Itself.

Alternative Title(s): Juggernaut, The Juggernaut


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