using System;

public class Program

{

    public static void Main()

    {

        // arrays - fixed size data structure, one data type used

        // declare array name and size

        int [] array = new int[10] {3, 5, 7, 3, 6, 1, 4, 6, 1, 3};

        // assigning a value to an individual element number

        array[0] = 4;

        Console.WriteLine(array[0]);

        for (int i = 0; i <= 9; i++)

        {

            Console.Write(array[i] + ": ");

        }

     }

}