C21221212121211331322132313132313331313233313232213232233131323131211   >>    C2122121212121133132213231313231333131323331323221323223313132313121   <<    C21221212121211331322132313132313331313233313232213232233131323131213   >>      C21221212121211331322132313132313331313233313232213232233131323131212   >>