#include <stdio.h>

int compute(int a)
{
	if(a % 2 == 0){ //parne
		return a/2;	
	}
	else // neparne
		return (3*a)+1;
}



int main()
{
	int a,b;
	int sa[10000], sb[10000];


	while(scanf("%d %d", &a, &b)) {
		if(a == 0 && b == 0)
			break;
		
		for(int i = 0; i < 10000; i++) {
			sa[i] = -1;
			sb[i] = -1;
		}

		sa[0] = a; sb[0] = b;

		
		int i = 0;
		while(i < 10000 && sa[i] != 1) {
			sa[i+1] = compute(sa[i]);
			if(sa[i+1] == 1)
				break;
			i++;
		}
		i = 0;
		while(i < 10000 && sb[i] != 1) {
			sb[i+1] = compute(sb[i]);
			if(sb[i+1] == 1)
				break;
			i++;
		}
		
		bool end = false;
		for(int i = 0; i < 10000; i++) {
			for(int j = 0; j < 10000; j++) {
				if(sa[i] == sb[j]) {
					printf("%d needs %d steps, %d needs %d steps, they meet at %d\n",
						a, i, b, j, sa[i]					
					);
					end = true;
					break;
				}
			}
			if(end == true) break;
		}
	}
	return 0;
}