#include <iostream>
#include <sstream>
#include <vector>
using namespace std;

int main() {
    string first_line;
    getline(cin, first_line);
    stringstream ss(first_line);

    vector<int> cost_and_tax_rate;
    int num;
    while (ss >> num) {
        cost_and_tax_rate.push_back(num);
    }

    int cost = cost_and_tax_rate[0];
    int tax_rate = cost_and_tax_rate[1];

    int tax = cost * tax_rate / 100;

    cout << cost + tax << endl;

    return 0;
}