String array to Int array

Question

I am trying to get a string from the console and put all elements in an int array. It throws an error that my input was in a wrong format. I am trying with "1 1 3 1 2 2 0 0" and I need those as int values and later perform some calculations with them.

Here is my attempt:

class Program
{
   static void Main()
   {

    string first = Console.ReadLine();
    string[] First = new string[first.Length];

    for (int i = 0; i < first.Length; i++)
    {
        First[i] += first[i];
    }

    int[] Arr = new int[First.Length];//int array for string console values
    for (int i = 0; i < First.Length; i++)//goes true all elements and converts them into Int32
    {
        Arr[i] = Convert.ToInt32(First[i].ToString());
    }
    for (int i = 0; i < Arr.Length; i++)//print array to see what happened
    {
        Console.WriteLine(Arr[i]);
    } 
 }
}

Answer 1

try this

string str = "1 1 3 1 2 2 0 0";
int[] array = str.Split(' ').Select(int.Parse).ToArray(); 

Demo