D12121212121313233313123231323223313132322331323323133313132333131   >>    D1212121212131323331312323132322331313232233132332313331313233313   <<    D12121212121313233313123231323223313132322331323323133313132333133   >>      D12121212121313233313123231323223313132322331323323133313132333132   >>