Odd Number in a List of Numbers

using System;
class OddNumber
{
  static void Main()
  {
    //Telerik Academy
    //You are given a list of N integer numbers all but one of which appears an even number of times.
    //Write a program to find the one integer which appears an odd number of times.

    int numsToCheck = int.Parse(Console.ReadLine());
    int[] numsArray = new int[numsToCheck];

    int middleResult = int.Parse(Console.ReadLine());

    for (int i = 2; i <= numsToCheck; i++)
    {
      int inputNum = int.Parse(Console.ReadLine());

      middleResult = middleResult ^ inputNum;
    }
    Console.WriteLine(middleResult);
  }
}