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#include <iostream> #include <cstdio> #define ll long long using namespace std; int check(ll num,ll limit) { ll a=num,b=limit; int cnt=0; while(a<=limit) { if(a%2) { a=(a*3+1); cnt+=1; if(a>limit) return cnt-1; } else { a/=2; cnt+=1; if(a==1) return cnt; } } return cnt; } int main() { ll num,limit; int c; int kase=1; while(cin>>num) { cin>>limit; if(num==-1 && limit==-1) break; c = check(num,limit); cout<<"Case "<<kase++<<": A = "<<num<<", limit = "<<limit<<", number of terms = "<<c+1<<"\n"; } return 0; } |