백준 10757 자바 풀이

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

public class baekjoon10757 {
    public static void main(String[]args) throws IOException {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        String s1 =br.readLine();

        StringTokenizer st = new StringTokenizer(s1," ");

        BigInteger a1  = new BigInteger(st.nextToken());
        BigInteger a2  = new BigInteger(st.nextToken());

        System.out.println(a1.add(a2));

    }
}