C2122121212121133132213231313231333131323331323221323223313113131   >>    C212212121212113313221323131323133313132333132322132322331311313   <<    C2122121212121133132213231313231333131323331323221323223313113133   >>      C2122121212121133132213231313231333131323331323221323223313113132   >>