C1311213331333132332133313331333133313331333131122112313231121131   >>    C131121333133313233213331333133313331333133313112211231323112113   <<    C1311213331333132332133313331333133313331333131122112313231121133   >>      C1311213331333132332133313331333133313331333131122112313231121132   >>