are red and 3 of them are white. he then switches off the lights and places a hat on top of their heads. the situation is such that no one can see their hat color, 1 is facing the wall and cant say anything, 2 can see 1 and 3 can see both 1 and 2. then he tells the rules of his game: "if either of you three can tell the correct color of your head, i will let all of you go. however, if any of you answer wrong, all 3 of you will instantly die. time is 3 minutes."
upon 2 and half minutes passing, a shouts the 