java?有一個N位數字，各位加起來不超過M。M<=1000000

import java.util.*;
//1:無需package
//2: 類名必須Main, 不可修改public class Main {
public static void main(String[] args) {Scanner scan = new Scanner (System.in);int n = scan.nextInt();int m = scan.nextInt();int[] arr = new int[n];for(int i = 0 ; i<n ; i++){if( m > 9 ){arr[i] = 9;m-=9;}else{arr[i] = m ;break;}}for (int i : arr) {System.out.print(i);}}
}