C313212111133131211331333133313331333133313231333133313311211113313232231211   >>    C31321211113313121133133313331333133313331323133313331331121111331323223121   <<    C313212111133131211331333133313331333133313231333133313311211113313232231213   >>      C313212111133131211331333133313331333133313231333133313311211113313232231212   >>