D121212121213132333131232313232233131323223313231322331323331323132311231   >>    D12121212121313233313123231323223313132322331323132233132333132313231123   <<    D121212121213132333131232313232233131323223313231322331323331323132311233   >>      D121212121213132333131232313232233131323223313231322331323331323132311232   >>