#include <iostream>
#include<stdio.h>
#include<string.h>
#include<algorithm>
#include<math.h>
#include<queue>
const int maxn = 110;
using namespace std;
long long x,y;

int main(){
    scanf("%lld%lld",&x,&y);
    long long num = x;
    int ans = 0;
    while(num<=y){
        num *=2;
        ans++;
    }
    printf("%d\n",ans);
    return 0;
}
