#include<cstdio>
#include<iostream>
#define ll long long
using namespace std;
int main(){
	long long n,t;
	cin>>t>>n;
long long l=0,r=100000000000000,mid;
	while(l<r){
		mid=(l+r)/2;
		if(
		(((100+t)*mid)/100<n+mid)
		){
			l=mid+1;
		}
		else{
			r=mid;
		}
	}
	cout<<1+((100+t)*(l-1))/100;
//	cin>>n;
}
/*Bismillahir Rahmanir Rahim*/
#include<bits/stdc++.h>
#define ll long long int
#define pb push_back
#define mp make_pair
#define PI acos(-1.0)
using namespace std;
int main()
{
    ios_base :: sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    double r,x,y,a=0,b=0,s,cnt=0;
    cin>>r>>x>>y;
    s=sqrt(x*x+y*y);
    if(s<r) cnt++;
    cout<<ceil(s/r)+cnt<<endl;
}
