C21221212121211331322132313132313231313232233132313223313311211113313231333131   >>    C2122121212121133132213231313231323131323223313231322331331121111331323133313   <<    C21221212121211331322132313132313231313232233132313223313311211113313231333133   >>      C21221212121211331322132313132313231313232233132313223313311211113313231333132   >>