코드블럭이 이상해요

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.StringTokenizer;

public class Main {

	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));//읽기
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));//내보내기
		StringTokenizer st;//String타입을 띄어쓰기를 기준으로 하나씩 출력해준다
		
		st = new StringTokenizer("Hello World");
		System.out.println(st.nextToken());
		System.out.println(st.nextToken());
		
		int n = Integer.parseInt(br.readLine());
		for(int i = 0; i < n; i++) {
			st = new StringTokenizer(br.readLine());
			bw.write(Integer.parseInt(st.nextToken()) + Integer.parseInt(st.nextToken())+"\n");
			
		}
		bw.flush();
		br.close();
		bw.close();
	
	}
}