C313212111133131211331333133313331333133311233133313311232322233211111   >>    C31321211113313121133133313331333133313331123313331331123232223321111   <<    C313212111133131211331333133313331333133311233133313311232322233211113   >>      C313212111133131211331333133313331333133311233133313311232322233211112   >>