#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define rep(i,n) for(int i=0;i<(n);++i)

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	int d;
	double p;
	cin >> d >> p;
	int tax=(int)d*p;
	tax/=100;
	cout << d+tax << endl;
}