C22221232322331313231323132323132323132313232233132313232123311211   >>    C2222123232233131323132313232313232313231323223313231323212331121   <<    C22221232322331313231323132323132323132313232233132313232123311213   >>      C22221232322331313231323132323132323132313232233132313232123311212   >>