C31232233133313221211113313331333133313113311331333133313113313231232322331   >>    C3123223313331322121111331333133313331311331133133313331311331323123232233   <<    C31232233133313221211113313331333133313113311331333133313113313231232322333   >>      C31232233133313221211113313331333133313113311331333133313113313231232322332   >>