Problema:

#include <iostream>
using namespace std;
int nr, n, ok = 0;
int main()
{
  cin >> n;
  for (int i=1; i<=n; i++)
  {
    cin >> nr;
    if (nr % 2 == 1)
    {
      ok = 1;
    }
  }
  if (ok != 1)
  {
    cout << "DA";
  }
  else
  {
    cout<< "NU";
  }
  return 0;
}