C31232233133313221211113313331333133313113311331333133313211232322131   >>    C3123223313331322121111331333133313331311331133133313331321123232213   <<    C31232233133313221211113313331333133313113311331333133313211232322133   >>      C31232233133313221211113313331333133313113311331333133313211232322132   >>