C21221212121211331322132313132313331313233313232213232233131121132311   >>    C2122121212121133132213231313231333131323331323221323223313112113231   <<    C21221212121211331322132313132313331313233313232213232233131121132313   >>      C21221212121211331322132313132313331313233313232213232233131121132312   >>