#include<bits/stdc++.h>
using namespace std;
#define ll long long

int main()
{
	//freopen("in.txt","r",stdin);
	//freopen("out.txt","w",stdout);
     ll x1,cas,a,b,c,x,y,z,x2,y1,y2,z1,z2,n,ans,t,i,j,k;
     cin>>t;
     for(cas=1;cas<=t;cas++)
     {
     	cin>>n;
     	a=0,b=0,c=0,x=1000,y=1000,z=1000;
     	while(n--)
     	{
     		cin>>x1>>y1>>z1>>x2>>y2>>z2;
            a=max(a,x1);b=max(b,y1);c=max(c,z1);
            x=min(x,x2),y=min(y,y2),z=min(z,z2);
     	}
     	ans=(x-a)*(y-b)*(z-c);
     	if(ans<1)
     		cout<<"Case "<<cas<<": "<<0<<endl;
     	else
     		cout<<"Case "<<cas<<": "<<ans<<endl;
     }
     return 0;
}