Unable to find the error in my code

See more:

C#

Can someone please check the code below and mention the problem area.

<pre>static void Main(string[] args)
        {
            Console.Write("How many nums to be compared: ");
            int n = int.Parse(Console.ReadLine()); //Parse int n for arr.Length
            int[] arr = new int[n]; //Creates array with name arr and length n
            Console.WriteLine("Enter the nums: "); //To be used while entering elements

            //Registers array elements
            for (int arrIndex = 0; arrIndex < arr.Length; arrIndex++)
            {
                arr[arrIndex] = int.Parse(Console.ReadLine()); //Parse array elements
            }

            //Prints array
            for (int arrIndex = 0; arrIndex < arr.Length; arrIndex++)
            {
                Console.Write(arr[arrIndex] + " ");
            }
            Console.WriteLine();

            GetMax(arr);
        }

        static void GetMax(int[] array)
        {
            if ((array[0]) > (array[1]))
            {
                Console.Write("Number {} is > than {}", array[0], array[1]);
            }
            else if ((array[0]) < (array[1]))
            {
                Console.Write("Number {} is < than {}", array[0], array[1]);
            }
            else
            {
                Console.Write("Number {} and {} are equal", array[0], array[1]);
            }
        }}

What I have tried:

I tried re-reading the complete chapter on methods from the book I'm learning C# but couldn't find any reason.

I'm an absolute beginner so I request to please keep the explanation very very simple.

It gives me the following error when I run the code

How many nums to be compared: 2
Enter the nums:
1
5
1 5

Unhandled Exception: System.FormatException: Input string was not in a correct format.
   at System.Text.StringBuilder.AppendFormatHelper(IFormatProvider provider, String format, ParamsArray args)
   at System.String.FormatHelper(IFormatProvider provider, String format, ParamsArray args)
   at System.IO.TextWriter.Write(String format, Object arg0, Object arg1)
   at System.IO.TextWriter.SyncTextWriter.Write(String format, Object arg0, Object arg1)
   at System.Console.Write(String format, Object arg0, Object arg1)
   at Ch9ExQ2.Program.GetMax(Int32[] array) in C:\Users\mohit\source\ProgFundamExrsQs\Ch9ExQ2\Ch9ExQ2\Program.cs:line 42
   at Ch9ExQ2.Program.Main(String[] args) in C:\Users\mohit\source\ProgFundamExrsQs\Ch9ExQ2\Ch9ExQ2\Program.cs:line 31
Press any key to continue . . .