> #include <stdio.h>
> #include <math.h>
> void main(){
> 	int a,b,i,k,s=1,t,x,y;
> 	scanf("%d %d",&a,&b);
> 	while(a!=b){
> 		s=1;
> 		if(a>b){x=b;y=a;}
> 		else if(a<b){x=a;y=b;}
> 		for(i=x;i<=y;i++){
> 			k=i;
> 			t=1;
> 			while(k!=1){
> 				if(k%2==0){ k=k/2; t++;}
> 				else{
> 					k=3*k+1;
> 					t++;}
> 			}
> 			if(t>s) s=t;
> 		}
> 		printf("%d %d %d\n",a,b,s);
> 		scanf("%d %d",&a,&b);
> 	}
> }