C11111333133313232233133313331333133313331312111133133323131231   >>    C1111133313331323223313331333133313331333131211113313332313123   <<    C11111333133313232233133313331333133313331312111133133323131233   >>      C11111333133313232233133313331333133313331312111133133323131232   >>