C11111333133313232233133313331333133313221333133313232313331312231   >>    C1111133313331323223313331333133313331322133313331323231333131223   <<    C11111333133313232233133313331333133313221333133313232313331312233   >>      C11111333133313232233133313331333133313221333133313232313331312232   >>