#include<iostream>

 #include<cstdio>

 #include<cstring>

 #include<string>

 #include<cmath>

 #include<vector>

 #include<algorithm>

 #include<cctype>

 #include<queue>

 #include<stack>

 #include<map>

 #include<set>

 #include<bitset>

 using namespace std;

 typedef struct Point

 {

     int x,y;

 }Point;

 int main()

 {

     Point p,v;

     while(cin>>p.x>>p.y>>v.x>>v.y)

     {

         int Pwin=p.x+p.y;

         int Vwin=max(v.x,v.y);

         if(Pwin<=Vwin){

             cout<<"Polycarp"<<endl;

         }

         else{

             if(p.x<=v.x&&p.y<=v.y){

                 cout<<"Polycarp"<<endl;

             }

             else

                 cout<<"Vasiliy"<<endl;

         }

     }

     return ;

 }