package yukiCoder;

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

public class No00056 {

	public static void main(String[] args) {
		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

		String[] input = new String[2];

		try {
			input = bufferedReader.readLine().split(" ");

			Long cost = Long.parseLong(input[0]);
			double tax = Double.parseDouble(input[1]) * 0.01;

			System.out.println(calculation(cost, tax));

		} catch (IOException e) {
			e.printStackTrace();
		}
	}


	public static Long calculation(long cost, double tax) {
		return (long) (cost + cost * tax);
	}
}