whoj-1314

#include<iostream>using namespace std;int linklength(int x){int cnt=1;while(x!=1){cnt++;if(x%2)x=x*3+1;elsex/=2;}return cnt;}int main(){int a,b;while(cin>>a>>b && a+b){int max=0;for(int i=a;i<=b;++i){int t=linklength(i);if(t>max)max=t;}cout<<max<<endl;}return 0;}