#445 PseudoPerfect

#include <iostream>
using namespace std;

int main(){
    int n;

    cin >> n;
    int s = 0, d;

    for( d = 1 ; d * d <= n ; d++ )
        if (n % d == 0)
        {
            s += d;
            if(d * d < n)
                s += n / d;
        }
    if(d * d == n)
        s += d;

    if(s % n == 0)
        cout << "DA";
    else
        cout << "NU";

    return 0;
}