C11111333133313232233133313331333133112111112113313331311331333121111331333231   >>    C1111133313331323223313331333133313311211111211331333131133133312111133133323   <<    C11111333133313232233133313331333133112111112113313331311331333121111331333233   >>      C11111333133313232233133313331333133112111112113313331311331333121111331333232   >>