#include<stdio.h>

int t,i,n;

int main()
{

FILE *f=fopen("invers.in","r"),*g=fopen("invers.out","w");
fscanf(f,"%d",&t);
for(i=1; i<=t; i++)
{fscanf(f,"%d",&n);
if(n%11==0)fprintf(g,"%s","DA\n");
else
fprintf(g,"%s","NU\n");}
fclose(f);
fclose(g);
return 0;}