C1311213331333132332133313331333133313331333132112313331121132311   >>    C131121333133313233213331333133313331333133313211231333112113231   <<    C1311213331333132332133313331333133313331333132112313331121132313   >>      C1311213331333132332133313331333133313331333132112313331121132312   >>