C11111333133313232233133313331333133112111112113313331333132333112313231   >>    C1111133313331323223313331333133313311211111211331333133313233311231323   <<    C11111333133313232233133313331333133112111112113313331333132333112313233   >>      C11111333133313232233133313331333133112111112113313331333132333112313232   >>