C21221212121211331322132313132313132313232233132313223313231323131231211111221   >>    C2122121212121133132213231313231313231323223313231322331323132313123121111122   <<    C21221212121211331322132313132313132313232233132313223313231323131231211111223   >>      C21221212121211331322132313132313132313232233132313223313231323131231211111222   >>