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#include <iostream>
#include <fstream>
using namespace std;
int T, i , cif,Ok;
long long x,j,el,inv;
int main()
{
ifstream f ("invers.in");
ofstream g ("invers.out");
f>>T;
for(i=1;i<=T;i++)
{
f>>x;
Ok=0;
for(j=1;j<x;j++)
{
el=j;
inv=0;
cif=0;
while(el){
cif=el%10;
inv=inv*10+cif;
el=el/10;
}
if(inv+j==x)
Ok=1;
}
if(Ok==1)
g<<"DA";
else
g<<"NU";
g<<endl;
}
f.close();
g.close();
return 0;
}