C31232233133313221211113313331333133313113311331333133313113313222311211   >>    C3123223313331322121111331333133313331311331133133313331311331322231121   <<    C31232233133313221211113313331333133313113311331333133313113313222311213   >>      C31232233133313221211113313331333133313113311331333133313113313222311212   >>