C11111333133313232233133313331333133112111112113313233121111331311312231   >>    C1111133313331323223313331333133313311211111211331323312111133131131223   <<    C11111333133313232233133313331333133112111112113313233121111331311312233   >>      C11111333133313232233133313331333133112111112113313233121111331311312232   >>