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

/**************************************************************
	Problem: 1062
	User: tangkaixuan
	Language: C++
	Result: Wrong Answer
****************************************************************/