D1122112312233231312323132322331311331323132311331323223313123232331   >>    D112211231223323131232313232233131133132313231133132322331312323233   <<    D1122112312233231312323132322331311331323132311331323223313123232333   >>      D1122112312233231312323132322331311331323132311331323223313123232332   >>