Console.WriteLine("Enter Sub 1 marks")
Subject_1 = Console.Readline
Console.WriteLine("Enter Sub 2 marks")
Subject_2 = Console.ReadLine()
Console.WriteLine("Enter Sub 3 marks")
Subject_3 = Console.ReadLine()
total = Subject_1 + Subject_2 + Subject_3
console.write ("total is ")
Console.write("average is ")
Console.WriteLine(Average)
console.write("outstanding")
console.writeline("good")