package com.njupt.acm; import java.math.BigInteger;
import java.util.Scanner; public class UVA_10106 { public static void main(String[] args) {
Scanner scanner = new Scanner (System.in); while(scanner.hasNext()){
BigInteger a = scanner.nextBigInteger();
BigInteger b = scanner.nextBigInteger(); System.out.println(a.multiply(b));
}
}
}