C3132121111133313233121111331333133313331333133313331333133313211232231   >>    C313212111113331323312111133133313331333133313331333133313331321123223   <<    C3132121111133313233121111331333133313331333133313331333133313211232233   >>      C3132121111133313233121111331333133313331333133313331333133313211232232   >>