#include <bits/stdc++.h>
using namespace std;
void cline() { cout << '\n'; }
template <typename T, typename... V>
void cline(T t, V... v) {
  cout << t;
  if (sizeof...(v)) cout << ' ';
  cline(v...);
}
void cspc() { cout << ' '; }
template <typename T, typename... V>
void cspc(T t, V... v) {
  cout << t;
  if (sizeof...(v)) cout << ' ';
  cspc(v...);
}
const int N = 404;
int x, y, n, d;
int xa[N], ya[N];
int dp[N][N];
bool flag;
bool rec(int xind, int yind) {
  if (xind * xind + yind * yind > d * d) {
    return 1;
  }
  int &ans = dp[xind + 200][yind + 200];
  if (ans != -1) return ans;
  ans = 0;
  for (int i = 0; i < n; i++) {
    if (!rec(xind + xa[i], yind + ya[i])) ans = 1;
  }
  return ans;
}
int32_t main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cin >> x >> y >> n >> d;
  for (int i = 0; i < n; i++) cin >> xa[i] >> ya[i];
  memset(dp, -1, sizeof(dp));
  if (rec(x, y)) {
    cspc("Anton");
  } else {
    cspc("Dasha");
  }
  return 0;
}
