#include<bits/stdc++.h>
using namespace std;
int main(){
	int a=100,i;
	for(i=1;a>=0.5;i++){
		a=a/2;
	} 
	cout<<i;
}
/**************************************************************
	Problem: 1062
	User: linzihang
	Language: C++
	Result: Accepted
	Time:3 ms
	Memory:2072 kb
****************************************************************/