#include <iostream>
#include <fstream>
using namespace std;
int invers(int n){
    int ogl = 0;
    while (n){
        ogl = 10 * ogl + n % 10;
        n /= 10;
    }
    return ogl;
}
int main(){
    int t, n;
    cin  >> t;
    for (int i = 1; i <= t; i++){
        cin >> n;
        if(n == ((n - invers(n)) + invers(n))){
            cout << "DA" << endl;
        } else cout << " NU" << endl;
    }
   return 0;
}