using System.Diagnostics;
public static void Main()
var sw = new Stopwatch();
Console.WriteLine(isPalindrome("KABAK"));
Console.Write(sw.ElapsedMilliseconds);
static bool isPalindrome(string text){
int length = text.Length;
for (int i = 0; i < length; i++)
if (text[i] != text[length - i - 1])