백준 2908번: 상수

문제출처: https://www.acmicpc.net/problem/2908

import java.io.BufferedReader;
import java.io.InputStreamReader;
 
public class Main {
    
    public static void main(String[] args) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String[] input = reader.readLine().split(" ");
        StringBuilder num1 = new StringBuilder();
        StringBuilder num2 = new StringBuilder();
        
        for(int i=2 ; i>=0 ; i--){
            num1.append(input[0].charAt(i));
            num2.append(input[1].charAt(i));
        }
        
        System.out.println(Integer.parseInt(num1.toString()) > Integer.parseInt(num2.toString()) ? num1 : num2);
    }
}