C2122121212121133132213231313231333131323331323221323223313112113221   >>    C212212121212113313221323131323133313132333132322132322331311211322   <<    C2122121212121133132213231313231333131323331323221323223313112113223   >>      C2122121212121133132213231313231333131323331323221323223313112113222   >>