C11111333133313232233133313331333133112111112113313331333131232222231   >>    C1111133313331323223313331333133313311211111211331333133313123222223   <<    C11111333133313232233133313331333133112111112113313331333131232222233   >>      C11111333133313232233133313331333133112111112113313331333131232222232   >>