C313212111133131211331333133313331333133312111133133313221132211   >>    C31321211113313121133133313331333133313331211113313331322113221   <<    C313212111133131211331333133313331333133312111133133313221132213   >>      C313212111133131211331333133313331333133312111133133313221132212   >>