C313212111133131211331333133313331333133312111133133313331333133313331121221211   >>    C31321211113313121133133313331333133313331211113313331333133313331333112122121   <<    C313212111133131211331333133313331333133312111133133313331333133313331121221213   >>      C313212111133131211331333133313331333133312111133133313331333133313331121221212   >>