#include <bits/stdc++.h>
using namespace std;
int main() {
  int x1, y1, x2, y2;
  scanf("%d%d%d%d", &x1, &y1, &x2, &y2);
  if (x1 <= x2 && y1 <= y2)
    printf("Polycarp\n");
  else if (x1 + y1 <= max(x2, y2))
    printf("Polycarp\n");
  else
    printf("Vasiliy\n");
}
