백준 22193 Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigInteger;

public class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
		String s = bf.readLine();
		BigInteger a = new BigInteger(bf.readLine());
		BigInteger b = new BigInteger(bf.readLine());
		System.out.println(a.multiply(b));

	}

}