#include <bits/stdc++.h>
using namespace std;
int main() {
  pair<int, int> f_p, s_p;
  cin >> f_p.first >> f_p.second >> s_p.first >> s_p.second;
  if (s_p.first >= f_p.first && s_p.second >= f_p.second) {
    cout << "Polycarp" << endl;
    return 0;
  }
  f_p.first += f_p.second;
  if (s_p.first < s_p.second) s_p.first = s_p.second;
  if (f_p.first <= s_p.first)
    cout << "Polycarp" << endl;
  else
    cout << "Vasiliy" << endl;
}
