#include<bits/stdc++.h>

using namespace std;

int main(){
	int t;
	cin>>t;
	for(int i=0;i<t;i++){
		int a,b;
		cin>>a>>b;
		cout<<"Case "<<i+1<<": ";
		cout<<abs(a-b)*4+(3*3)+(2*5)+a*4<<"\n";
	}
}