C313212111133131211331333133313331333133311233133313232331233132322331   >>    C31321211113313121133133313331333133313331123313331323233123313232233   <<    C313212111133131211331333133313331333133311233133313232331233132322333   >>      C313212111133131211331333133313331333133311233133313232331233132322332   >>