C313212111133131211331333133313331333133311233133313311231333132222331   >>    C31321211113313121133133313331333133313331123313331331123133313222233   <<    C313212111133131211331333133313331333133311233133313311231333132222333   >>      C313212111133131211331333133313331333133311233133313311231333132222332   >>