C22231321133132233132322331323113311211331311331322331323212221   >>    C2223132113313223313232233132311331121133131133132233132321222   <<    C22231321133132233132322331323113311211331311331322331323212223   >>      C22231321133132233132322331323113311211331311331322331323212222   >>