#include <bits/stdc++.h>
using namespace std;
const long long N = (long long)(5e5) + 322;
const long long INF = (long long)(1e9);
const long long mod = (long long)(1e9) + 7;
const double eps = 1e-9;
int xp, yp, xv, yv, distp, distv;
int main() {
  ios_base ::sync_with_stdio(false);
  cin.tie(0);
  cin >> xp >> yp >> xv >> yv;
  distp = xp + yp;
  distv = max(xv, yv);
  if (distp <= distv) {
    cout << "Polycarp";
    return 0;
  }
  if (xp <= xv && yp <= yv) {
    cout << "Polycarp";
    return 0;
  }
  cout << "Vasiliy";
  return 0;
}
