import java.util.Scanner;

class Wandbox
{
    public static void main(String[] args)
    {
    	Scanner sc = new Scanner(System.in);
    	
    	int d = sc.nextInt();
    	int p = sc.nextInt();
    	
    	int ans = d * p / 100 + d;
    	System.out.println(ans);
    }
}