C11111333133313232233133313331333131133132313331312111113332222211   >>    C1111133313331323223313331333133313113313231333131211111333222221   <<    C11111333133313232233133313331333131133132313331312111113332222213   >>      C11111333133313232233133313331333131133132313331312111113332222212   >>