D12121323331322331311132313132313233313233313331313232123313233313232313231   >>    D1212132333132233131113231313231323331323331333131323212331323331323231323   <<    D12121323331322331311132313132313233313233313331313232123313233313232313233   >>      D12121323331322331311132313132313233313233313331313232123313233313232313232   >>