Today is your first day working at Alcatraz federal prison. Because you are a Beta warden, you are only assigned to be a night watchman in Area B. The atmosphere in the cell was cold and quiet, you suddenly heard a voice coming from the cell of prisoner Samuel Gilday. "OH?" "New person?" "Well, I guess I'll 'play' a little more carefully before I get bored." Samuel Gilday turned the Rubik's cube in his hand, wondering how a grain of pebble would change a mountain?