题解 | 回文对称数

using System;
public class Program {
    public static void Main() {
        int n = int.Parse(Console.ReadLine());
        for (int i = 1; i <= n; i++) {
            string str = i.ToString();
            string s = "";
            for (int j = str.Length; j > 0; j--) {
                s = s + str[j - 1];

            }
             if (str == s) {
            Console.WriteLine(i);
            }
        }
       

    }
}