#include <iostream>

using namespace std;

int main()
{
    int a=1,b=1,c,n,i,x,c1=0,z;
    cin>>n;
    z=n;
    for(z;z!=0;z--){
        cin>>x;
        a=1;
        b=1;
    for(i=1;i<=n;i++){
        c=a+b;
        if(x==c)c1=1;
        a=b;
        b=c;
    }
    if(c1==1||x==1)cout<<"DA"<<" ";
    else cout<<"NU"<<" ";
    c1=0;
    }
    return 0;
}