[백준 5789] 한다 안한다

문제

https://www.acmicpc.net/problem/5789

5789번: 한다 안한다

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내가 작성한 코드

import java.io.*;

public class qor5789 {
    public static void main(String[] args) throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        int testnum = Integer.parseInt(br.readLine());

        for(int i = 0; i<testnum; i++){
            String input = br.readLine();
            char first = input.charAt(input.length()/2-1);
            char finish = input.charAt(input.length()/2);

            if(first == finish){
                bw.write("Do-it"+"\n");
            }
            else{
                bw.write("Do-it-Not"+"\n");
            }
        }
        bw.close();
    }
}