import java.util.Scanner;
import java.math.BigDecimal;

class main{
    public static void main(String args[]){
	Scanner scan = new Scanner(System.in);

	BigDecimal price = new BigDecimal(scan.nextLong());
	BigDecimal tax = new BigDecimal(price.intValue() *  scan.nextInt() * 0.01);
	
	System.out.println( price.add(tax).intValue() );
	
    }
}