#include <iostream>
#include <string>
using namespace std;
int main() {
string str;
int l,k,p=0;
for(int i=0;i<3;i++){
cin>>str;
if(str[0]=='l')
l=1;
else if(str[0]=='k')
k=1;
else if(str[0]=='p')
p=1;
}
if(l==k && k==p && p==1)
cout<<"GLOBAL";
else
cout<<"PONIX";
return 0;
}
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