C21221212121211331322132313132313231313232233132313223313311211113313132323331   >>    C2122121212121133132213231313231323131323223313231322331331121111331313232333   <<    C21221212121211331322132313132313231313232233132313223313311211113313132323333   >>      C21221212121211331322132313132313231313232233132313223313311211113313132323332   >>