C11111333133313232233133313331333133313331312111133133112213123231   >>    C1111133313331323223313331333133313331333131211113313311221312323   <<    C11111333133313232233133313331333133313331312111133133112213123233   >>      C11111333133313232233133313331333133313331312111133133112213123232   >>