StreamReader f1 = new StreamReader(args[0]);
        StreamReader f2 = new StreamReader(args[1]);
        StreamWriter p = new StreamWriter(args[2]);
        double[] array1 = new double[20];
        double[] array2 = new double[20];
        double[] array3 = new double[20];

        string line;
        int index;
        double value;

 while ((line = f1.ReadLine()) != null)
        {
            string[] currentLine = line.Split('|');
            index = Convert.ToInt16(currentLine[0]);
            value = Convert.ToDouble(currentLine[1]);
            array1[index] = value;
        }

static void Main(String[] args)
    {
        // Create variables to hold the 3 elements of each item that you will read from the file
        // Create variables for all 3 files (2 for READ, 1 for WRITE)
        int ID;
        string InvName;
        int Number;

        string IDString;
        string NumberString;

        string line;

        List<InventoryNode> Inventory = new List<InventoryNode>();
        InventoryNode Item = null;

        StreamReader f1 = new StreamReader(args[0]);
        StreamReader f2 = new StreamReader(args[1]);
        StreamWriter p = new StreamWriter(args[2]);


        // Read each item from the Update File and process the data

        //Data is separated by pipe |