C3132121111133313233121111331333133313331333133313331333133313112211232313211   >>    C313212111113331323312111133133313331333133313331333133313331311221123231321   <<    C3132121111133313233121111331333133313331333133313331333133313112211232313213   >>      C3132121111133313233121111331333133313331333133313331333133313112211232313212   >>