#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
using ll = long long;

int main(){
	ios::sync_with_stdio(0);cin.tie(0);
	ll x, y, cnt=0;
	cin >> x >> y;
	while(x<=y){
		cnt++;
		x<<=1;
	}
	cout << cnt << "\n";
	return 0;
}