C313212111133131211331333133313331333133311233133313113313232332131   >>    C31321211113313121133133313331333133313331123313331311331323233213   <<    C313212111133131211331333133313331333133311233133313113313232332133   >>      C313212111133131211331333133313331333133311233133313113313232332132   >>