assignment of the entered value from the keyboard to the 2nd variables

The question is very stupid. Assign the entered value from the keyboard to two different variables used in different classes at once. So that the console did not wait to re-enter, as implemented in this example:

Console.WriteLine("Введите коэффициент усиления: \nGain="); Active.Gain = Convert.ToDouble(Console.ReadLine()); Passive.Gain = Convert.ToDouble(Console.ReadLine());