#include<iostream>
#include<string>
#include<fstream>
#include<iomanip>
#include<vector>
#include<cctype>
#include<algorithm>
#include<sstream>
using namespace std;

int main()
{
	double d, p, q;
	long long a, b;
	cin >> d >> p;
	q = floor(d*(p / 100));
	a = (long long)d;
	b = (long long)q;
	cout << a + b << endl;
	return 0;
}