#include <iostream>
using namespace std;
const int TEN = 10;
int main() {
int a;
cin >> a;
int odd = 1;
while (a > 0) {
odd = 0;
if (a % TEN < 4 || a % TEN % 2 != 0) {
odd = 1;
}
a /= TEN;
}
if (odd == 0) {
cout << "DA";
} else {
cout << "NU";
}
return 0;
}
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