C1311213331333132332133313331333133313121111331333132313331121311   >>    C131121333133313233213331333133313331312111133133313231333112131   <<    C1311213331333132332133313331333133313121111331333132313331121313   >>      C1311213331333132332133313331333133313121111331333132313331121312   >>