C1311213331333132332133313331333133313121111331333133313331123311321   >>    C131121333133313233213331333133313331312111133133313331333112331132   <<    C1311213331333132332133313331333133313121111331333133313331123311323   >>      C1311213331333132332133313331333133313121111331333133313331123311322   >>