#include <iostream>
#include <stdio.h>
#include <cmath>

#define rep(i,n) for(int i = 0; i < n; i++)

typedef long long ll;

using namespace std;

const int INF = 1e9;
const int MOD = 1e9+7;
const double PI=3.14159265358979323846;

int main(){
  double a,b;
  cin >> a >> b;
  cout << floor(a+(b/100.)*a) << endl;
}