#include<bits/stdc++.h> using namespace std; int main(){ int n,a,b,c; cin>>n; while(n<0){ cin>>a>>b>>c; if(a=b or a=c or b=c){ cout<<"perfect"; }else if(a*a+b*b=c*c or b*b+c*c=a*a or a*a+c*c=b*b){ cout<<"good"; }else{ cout<<"just a triangle"; } } return 0; }