import java.io.BufferedReader;
import java.io.InputStreamReader;

class N056 {
    public static void main(String args[]) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String line = br.readLine();
        String[] lines = line.split(" ");
        double d = Double.parseDouble(lines[0]);
        int p = Integer.parseInt(lines[1]);
        System.out.println((int)(d * (100 + p) / 100));
    }
}