C313212111133131211331333133313331311331333131133133313223313112331322221   >>    C31321211113313121133133313331333131133133313113313331322331311233132222   <<    C313212111133131211331333133313331311331333131133133313223313112331322223   >>      C313212111133131211331333133313331311331333131133133313223313112331322222   >>