C11111333133313232233133313331333133313231312111133131133132333132223321113231   >>    C1111133313331323223313331333133313331323131211113313113313233313222332111323   <<    C11111333133313232233133313331333133313231312111133131133132333132223321113233   >>      C11111333133313232233133313331333133313231312111133131133132333132223321113232   >>