#include <bits/stdc++.h>
using namespace std;
long long power(long long a, long long b) {
  long long ans = 1;
  while (b > 0) {
    if (b % 2 != 0) {
      ans = (ans * a) % 1000000007;
    }
    a = (a * a) % 1000000007;
    b >>= 1;
  }
  return ans;
}
int main() {
  std::ios::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  ;
  int t = 1;
  while (t--) {
    int x1, y1, x2, y2;
    cin >> x1 >> y1 >> x2 >> y2;
    if (x1 >= x2 && y1 >= y2) {
      cout << "Vasiliy";
      return 0;
    }
    if (x2 >= x1 && y2 >= y1) {
      cout << "Polycarp";
      return 0;
    }
    if (x1 >= x2) {
      int v2 = y2 - y1;
      int v1 = x1;
      if (v1 > v2) {
        cout << "Vasiliy";
        return 0;
      } else {
        cout << "Polycarp";
        return 0;
      }
    }
    if (y1 >= y2) {
      int v1 = y1;
      int v2 = x2 - x1;
      if (v1 > v2) {
        cout << "Vasiliy";
        return 0;
      } else {
        cout << "Polycarp";
        return 0;
      }
    }
  }
  return 0;
}
