Write an application named DailyTemps that continuously prompts a user for a series of daily high temperatures until the user enters a sentinel value of 999. Valid temperatures range from -20 through 130 Fahrenheit. When the user enters a valid temperature, add it to a total; when the user enters an invalid temperature, display the error message: [Valid temperatures range from -20 to 130. Please reenter temperature]
Before the program ends, display the number of temperatures entered and the average temperature.

using System;
using static System. Console;
class DailyTemps
{
static void Main()
{
// Write your main here.
}
}