#include<bits/stdc++.h>
using namespace std;
int main(){
	int h=100,sum=0;
	while(h>=0.5)
	{
		h/=2;
		sum+=1;
	}
	cout<<sum+1;
	return 0;
}


/**************************************************************
	Problem: 1062
	User: lzc
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/