[백준/Java] 22193번 Multiply

-Code

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


public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = scanner.nextInt();
        int m = scanner.nextInt();
        BigInteger a = scanner.nextBigInteger();
        BigInteger b = scanner.nextBigInteger();

        System.out.println(a.multiply(b));
    }
}