#include<iostream>#include<cmath>#include<algorithm>using namespace std;int main(){  int i,j,t,max,cnt,n,a;  while(cin>>i>>j)  {    cout<<i<<‘ ‘<<j<<‘ ‘;    max=-100;    if(i>j)    {      t=j;      j=i;      i=t;    }    for(a=i;a<=j;a++)    {      n=a; ／／注意      cnt=1;      while(n-1)      {        if(n%2==0)          n=n/2;        else          n=3*n+1;        cnt++;      }      if(cnt>max)        max=cnt;    }    cout<<max<<endl;  }    return 0;}