C11111333133313232233133313331333133112111112113313331312111112321211   >>    C1111133313331323223313331333133313311211111211331333131211111232121   <<    C11111333133313232233133313331333133112111112113313331312111112321213   >>      C11111333133313232233133313331333133112111112113313331312111112321212   >>