import java.io.IOException;
import java.math.BigInteger;
import java.util.Scanner;
 
public class Main {
 
	public static void main(String[] args) throws IOException {
		Scanner in=new Scanner(System.in);
		while(in.hasNextBigInteger()){
			System.out.println(in.nextBigInteger().multiply(in.nextBigInteger()));
		}
	}
}