D121212121213132333131232313232233131323223313231322331323331323131331122221   >>    D12121212121313233313123231323223313132322331323132233132333132313133112222   <<    D121212121213132333131232313232233131323223313231322331323331323131331122223   >>      D121212121213132333131232313232233131323223313231322331323331323131331122222   >>