C21221212121211331322132313132313231313232233132313223313232332313232221   >>    C2122121212121133132213231313231323131323223313231322331323233231323222   <<    C21221212121211331322132313132313231313232233132313223313232332313232223   >>      C21221212121211331322132313132313231313232233132313223313232332313232222   >>