#include <bits/stdc++.h>
using namespace std;
const long long inf = 1e18;
const long long N = 5e5 + 19;
long long n, m;
vector<long long> adj[N];
long long color[N];
vector<pair<long long, long long> > edge;
bool dfs(long long v);
int32_t main() {
  ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
  long long x, xx, y, yy;
  cin >> x >> y >> xx >> yy;
  if (yy >= x + y || xx >= y + x || (yy >= y && xx >= x))
    cout << "Polycarp";
  else
    cout << "Vasiliy";
  return 0;
}
