using System;
public class Program
{
static bool KiemTraSoNghichDao(int N)
int SoDao=0;
int N1=N;
while(N1>0)
int ChuSo = N1%10;
SoDao = SoDao*10 + ChuSo;
N1=N1/10;
}
return SoDao==N;
public static void Main()
Console.WriteLine(KiemTraSoNghichDao(12321));