using System;
using System.Collections.Generic;
//給一串自值,進行+1,需考慮到進位該怎麼處理
public class Program
{
public static void Main()
int[] digits = {9,9,9};
int plsNum = 1;
int sum=0;
Stack<int> res = new Stack<int>();
for(var i=digits.Length-1 ; i>=0 ;i--)
sum = digits[i]+plsNum;
res.Push((digits[i]+plsNum)%10);
plsNum = sum/10;
if(i==0 && plsNum!=0)
res.Push(plsNum);
}
foreach(var j in res)
Console.WriteLine(j);