[SWEA] 15941번 평행사변형

import java.util.Scanner;
public class Solution {
	
	public static void main(String[] args){
		Scanner kb = new Scanner(System.in);
		StringBuilder sb = new StringBuilder();
		
		int TC = kb.nextInt();
		
		for(int i=0; i<TC; i++) {
			sb.append("#").append(i+1).append(" ");
			int N = kb.nextInt();
			int answer = N*N;
			sb.append(answer).append('\n');
			
		}
		System.out.println(sb.toString());
	}

}

 

너도  D1으로 가렴..