C313212111133131211331333133313331333133311233133313221211111211111122112323231   >>    C31321211113313121133133313331333133313331123313331322121111121111112211232323   <<    C313212111133131211331333133313331333133311233133313221211111211111122112323233   >>      C313212111133131211331333133313331333133311233133313221211111211111122112323232   >>