#include <iostream>
using namespace std;
int main()
{
    unsigned long long x;
    int nr=0;
    cin>>x;
    while(x)
    {
        if(x%2==1)
        {
            nr++;
        }
        x/=2;
    }
    if(nr==1)
    {
        cout<<"DA";
    }
    else
    {
        cout<<"NU";
    }
}