#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <queue>
#include <cmath>
#include <climits>
#include <iomanip>
#include <set>
#include <map>
using namespace std;
typedef long long ll;
int main(){
    double d,p;
    cin >> d >> p;
    double res = d * p * 0.01 + d;
    cout << (ll)res << endl;
}