D33131231211222331321123123231323132322331323331313232123313233313223311   >>    D3313123121122233132112312323132313232233132333131323212331323331322331   <<    D33131231211222331321123123231323132322331323331313232123313233313223313   >>      D33131231211222331321123123231323132322331323331313232123313233313223312   >>