C3123121111331133132313331333133313331333133313331333131133133313223231   >>    C312312111133113313231333133313331333133313331333133313113313331322323   <<    C3123121111331133132313331333133313331333133313331333131133133313223233   >>      C3123121111331133132313331333133313331333133313331333131133133313223232   >>