C313212111133131211331333133313331333133312111133133313331333133313232232231   >>    C31321211113313121133133313331333133313331211113313331333133313331323223223   <<    C313212111133131211331333133313331333133312111133133313331333133313232232233   >>      C313212111133131211331333133313331333133312111133133313331333133313232232232   >>