C1311213331333132332133313331333133313121111331333132313331322321   >>    C131121333133313233213331333133313331312111133133313231333132232   <<    C1311213331333132332133313331333133313121111331333132313331322323   >>      C1311213331333132332133313331333133313121111331333132313331322322   >>