import java.io.IOException;
import java.util.Scanner;


public class test007 {
	public static void main(String[] args) throws IOException {

		Scanner sc = new Scanner(System.in);
		// 整数の入力

		int D = sc.nextInt();
		int p = sc.nextInt();
		int ans=0;
		ans=(D*(100+p))/100;
		
		System.out.println(ans);
	}

}