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문제 코드 import java.io.BufferedReader; import java.io.InputStreamReader; import java.math.BigInteger; public class Main { public static void main(String[] args) throws Exception { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String[] arr = br.readLine().split(" "); System.out.println(new BigInteger(arr[0]).add(new BigInteger(arr[1]))); } } 출처 https://www.acmicpc.net/pr..