C313212111133131211331333133313331333133313231333133313331333133313331121112211   >>    C31321211113313121133133313331333133313331323133313331333133313331333112111221   <<    C313212111133131211331333133313331333133313231333133313331333133313331121112213   >>      C313212111133131211331333133313331333133313231333133313331333133313331121112212   >>