uva 10106 Product

//简单大数相乘，用java很简单
import java.util.Scanner;
import java.math.BigInteger;

public class Main{
	public static void main(String[] args){
		Scanner in = new Scanner(System.in);
		BigInteger a,b;
		while(in.hasNext()){
			a = in.nextBigInteger();
			b = in.nextBigInteger();
			System.out.println(a.multiply(b));
		}
	}
}