#include<stdio.h>
int main()
{
long int ini,lim,kase=1,A;
while(scanf("%ld%ld",&ini,&lim)==2)
{
A=ini;
if(ini<0 && lim<0) break;
long int term=1;
while(1)
{
if (ini==1) break;
else if(ini%2==0) ini=ini/2;
else ini=3*ini+1;
if(ini>lim)break;
term++;
}
printf("Case %ld: A = %ld, limit = %ld, number of terms = %ld\n",kase,A,lim,term);
kase++;
}
return 0;
}
/*
#include<stdio.h>
int main()
{
long int a,b,term,kase=1;
while(scanf("%ld%ld",&a,&b)==2)
{
if(a<0 && b<0)
break;
term=1;
while(1)
{
if (a==1)
break;
else
{
if(a%2==0)
a=a/2;
else
a=3*a+1;
if(a>b)
break;
term++;
}
}
printf(""Case %ld: A = %ld, limit = %ld, number of terms = %ld\n",kase,a,b,term);
kase++;
}
}
*/
