C313212111133131211331333133313331333133313231333133313331333133313111122211   >>    C31321211113313121133133313331333133313331323133313331333133313331311112221   <<    C313212111133131211331333133313331333133313231333133313331333133313111122213   >>      C313212111133131211331333133313331333133313231333133313331333133313111122212   >>