#include <bits/stdc++.h>
using namespace std;
int X, Y, n, d, x[22], y[22], dp[401][401];
int win(int X, int Y) {
  if (abs(X) > d || abs(Y) > d) return 1;
  int& res = dp[X + d][Y + d];
  if (res > -1) return res;
  res = 0;
  if (X * X + Y * Y > d * d) return res = 1;
  for (int i = 0; i < n; i++)
    if (!win(X + x[i], Y + y[i])) res = 1;
  return res;
}
int main() {
  cin >> X >> Y >> n >> d;
  for (int i = 0; i < n; i++) cin >> x[i] >> y[i];
  memset(dp, -1, sizeof(dp));
  cout << (win(X, Y) ? "Anton" : "Dasha");
}
