#10824번 : 네 수

문제

코드

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] arr = br.readLine().split(" ");

		if (arr.length <= 0 && arr.length > 4) {
			return;
		}
		
		String a = arr[0] + arr[1];
		String b = arr[2] + arr[3];

		System.out.println(Long.valueOf(a) + Long.valueOf(b));
	}
}

출처

https://www.acmicpc.net/problem/10824