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

/**************************************************************
	Problem: 1062
	User: tangkaixuan
	Language: C++
	Result: Accepted
	Time:3 ms
	Memory:2072 kb
****************************************************************/