C11111333133313232233133313331333133112111112113313331312111112122231   >>    C1111133313331323223313331333133313311211111211331333131211111212223   <<    C11111333133313232233133313331333133112111112113313331312111112122233   >>      C11111333133313232233133313331333133112111112113313331312111112122232   >>