#include <fstream>
#include <iostream>
using namespace std;
ifstream fin("invers.in");
ofstream fout("invers.out");
int i, j, x, copie, n,y,z;

int main()
{
    fin >> n;
    for(i=1;i<=n;i++)
        {   z=0;

            fin >> x;
            for(j=1;j<=x;j++)
                {y=0;
                    copie=j;
                    while(copie!=0)
                        {
                            y=y*10+copie%10;
                            copie=copie/10;
                        }
                    if(j+y==x)
                        {
                            z=1;
                            j=x;
                        }
                }
            if(z==1)
                fout << "DA\n";
            else
                fout << "NU\n";
        }


    fin.close();
    fout.close();
    return 0;
}