C11111333133313232233133313331333131133131211111323112113313122331   >>    C1111133313331323223313331333133313113313121111132311211331312233   <<    C11111333133313232233133313331333131133131211111323112113313122333   >>      C11111333133313232233133313331333131133131211111323112113313122332   >>