#include <bits/stdc++.h>

using namespace std;

int main(){

    long long int a,b,ans,cnt=1,tmp;

    while(cin>>a>>b){

        if(a<0 && b<0) break;

        ans=1;

        tmp=a;

        while(tmp!=1){

            if(tmp%2==0) tmp/=2;

            else tmp=3*tmp+1;

            if(tmp>b) break;

            ans++;

        }

        cout<<"Case "<<cnt++<<": A = "<<a<<", limit = "<<b<<", number of terms = "<<ans<<endl;

    }

}