C313212111133131211331333133313331333133311233133313223113311331   >>    C31321211113313121133133313331333133313331123313331322311331133   <<    C313212111133131211331333133313331333133311233133313223113311333   >>      C313212111133131211331333133313331333133311233133313223113311332   >>