C11111333133313232233133313331333131133133321111211331311112111   >>    C1111133313331323223313331333133313113313332111121133131111211   <<    C11111333133313232233133313331333131133133321111211331311112113   >>      C11111333133313232233133313331333131133133321111211331311112112   >>