1069 - Lift

#include<bits/stdc++.h>
using namespace std;
 
int main()
{
    int T,a,b,c=1;
    scanf("%d",&T);
    while(T--)
    {
        scanf("%d%d",&a,&b);
        if(b>=a)
            printf("Case %d: %d\n",c++,b*4+19);
        else
            printf("Case %d: %d\n",c++,(2*a-b)*4+19);
    }
    return 0;
}