C11111333133313232233133313331333131133132313331333131121111211311   >>    C1111133313331323223313331333133313113313231333133313112111121131   <<    C11111333133313232233133313331333131133132313331333131121111211313   >>      C11111333133313232233133313331333131133132313331333131121111211312   >>