#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int x1, y1, x2, y2;
  cin >> x1 >> y1 >> x2 >> y2;
  int win = 0;
  win = ((x1 <= x2 && y1 <= y2) | (x1 + y1 <= max(x2, y2)));
  if (win)
    cout << "Polycarp";
  else
    cout << "Vasiliy";
  return 0;
}
