C313212111133131211331333133313331333133312111133133313331333133311212323231   >>    C31321211113313121133133313331333133313331211113313331333133313331121232323   <<    C313212111133131211331333133313331333133312111133133313331333133311212323233   >>      C313212111133131211331333133313331333133312111133133313331333133311212323232   >>