#include<iostream>

using namespace std;

void cifre(int n, int &sc, int &nc)
{
    nc=0; sc=0;
    while(n)
    {
        nc++;
        sc=sc+n%10;
        n=n/10;
    }
}

int main ()
{
    int n, sc=0,m=0, nc=0;
    cin>>n;
    cifre(n, sc, nc);
    int ok=0;
    while (n!=0)
    {
        m=1.0*(sc-n%10)/(nc-1);

        if(n%10==m) ok=1;

        n=n/10;
    }
    if(ok) cout<<"DA";
    else
        cout<<"NU";
}