#include<bits/stdc++.h>
using namespace std;
int main(){
	long long int t,a[3];
	while(cin>>t){
		for(long long int i=1;i<=t;i++){
			cin>>a[0];
			cin>>a[1];
			cin>>a[2];
			sort(a,a+3);
			if(a[0]+a[1]<=a[2] or a[0]<=0 or a[1]<=0 or a[2]<=0)cout<<"Case "<<i<<": Invalid"<<endl;
			else if(a[0]==a[1] and a[1]==a[2])cout<<"Case "<<i<<": Equilateral"<<endl;
			else if(a[0]==a[1] or a[1]==a[2] or a[0]==a[2])cout<<"Case "<<i<<": Isosceles"<<endl;
			else cout<<"Case "<<i<<": Scalene"<<endl;
			
		}
	}
}