[SWEA][D2] 1926. 간단한 369게임 Java

import java.util.Scanner;  
  
class Solution  
{  
    public static void main(String args[]) throws Exception  
    {  
  
        Scanner sc = new Scanner(System.in);  
        int T;  
        T=sc.nextInt();  
  
        for (int i = 1; i <= T; i++) {  
            StringBuilder result = new StringBuilder();  
            int j = i;  
            while (j > 0){  
                if(j%10 == 3 || j%10 == 6 || j%10 == 9){  
                    result.append("-");  
                }  
                j = j /10;  
  
            }  
            if (result.length() == 0){  
                System.out.print(i+ " " );  
            }else{  
                System.out.print(result + " ");  
            }  
  
        }  
  
    }  
  
}