Write in c# and use while loop

Instructions DailyTemps.cs + 1 using System; 2 using static System.Console; 3 class DailyTemps 4{ 5 static void Main() 6 { 7 // Write your main here. 8 } 9} 10 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 Before the program ends, display the number of temperatures entered and the average temperature