C1311213331333132332133313331333133313331311331333132313221233131   >>    C131121333133313233213331333133313331333131133133313231322123313   <<    C1311213331333132332133313331333133313331311331333132313221233133   >>      C1311213331333132332133313331333133313331311331333132313221233132   >>