算法提高 P1001

import java.io.BufferedInputStream;
import java.math.BigInteger;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner in = new Scanner(new BufferedInputStream(System.in));
        BigInteger m = new BigInteger(in.next());
        BigInteger n = new BigInteger(in.next());
        System.out.println(m.multiply(n));
        in.close();
    }

}