#include <algorithm>
#include <cstdio>
#include <iostream>
#include <numeric>
#include <optional>
#include <vector>

using namespace std;

int main() {
    int32_t d, p;
    cin >> d >> p;
    cout << int32_t(d * (p + 100) / 100.0) << endl;
    return 0;
}