> int main()
> {
> 	int a,b,r,s,t,x;
> 	while ( scanf("%d%d",&a,&b)!=0)
> 	{   
> 		s=0;
> 		for(r=a;r<=b;r++)
> 		{ 
> 			x=r,t=1;
> 			while(x!=1)
> 			{
> 			if(x%2==0) x=x/2;
> 			else x=3*x+1;
> 			t++;
> 			}
> 		if(s<t) s=t;
> 		}
> 	    printf("%d %d %d\n",a,b,s);
> 	}
> 	return 0;
> }