How can I have the user input the data?

[mxrx81]

I just want to know how I could have a user input the data instead of having it fixed such as in { 56, 76, 2, 4, 5 }.
Im aware of the three codes here to input data but I dont know how to incorporate them in the code

     // Returns an int value from the console
  public static int GetInt(String prompt) { 
    Console.Write(prompt);   
    return int.Parse(Console.ReadLine()); 
  }

        // Returns a double value from the console.
  public static double GetDouble(String prompt) {
    Console.Write(prompt);   
    return double.Parse(Console.ReadLine()); 
  }

        // Returns a char value from the console.
  public static char GetChar(String prompt) {
    Console.Write(prompt);   
    return Console.ReadLine()[0]; 
  }
}

Thanks

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            int[][] region = new int[3][];    // scores
            region[0] = new int[5] { 56, 76, 2, 4, 5 };  //region1 5 stores
            region[1] = new int[3] { 83, 44, 14 };      //region2 3 stores
            region[2] = new int[2] { 34, 78, };      //region3 2 stores
            double sum;       // sum of the scores for each region
            for (int i = 0; i < region.Length; i++)
            {
                sum = 0;
                for (int j = 0; j < region[i].Length; j++)
                    sum += region[i][j];
                Console.Write
                   ("The average for each region {0} is ", i);
                Console.WriteLine((sum / region[i].Length).ToString("F1"));
            }   Console.ReadKey();
        }
    }
}