C21221212121211331322132313132313331313232233132323132313331111   >>    C2122121212121133132213231313231333131323223313232313231333111   <<    C21221212121211331322132313132313331313232233132323132313331113   >>      C21221212121211331322132313132313331313232233132323132313331112   >>