C31232233133313221211113313331333133313113311331333133313132222131   >>    C3123223313331322121111331333133313331311331133133313331313222213   <<    C31232233133313221211113313331333133313113311331333133313132222133   >>      C31232233133313221211113313331333133313113311331333133313132222132   >>