2338번: 긴자리 계산

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

public class Main { 
	public static void main(String[] args)
	
	{ 
		Scanner sc = new Scanner(System.in); 
 
		BigInteger first = sc.nextBigInteger();
		BigInteger second = sc.nextBigInteger(); 
 
		System.out.println(first.add(second));
		System.out.println(first.subtract(second)); 
		System.out.print(first.multiply(second)); 
		}
	}