C1311213331333132332133313331333133313121111331333133313112132233131   >>    C131121333133313233213331333133313331312111133133313331311213223313   <<    C1311213331333132332133313331333133313121111331333133313112132233133   >>      C1311213331333132332133313331333133313121111331333133313112132233132   >>