public static void Main()
double c, d, sum, subtraction, product, division, remainder;
Console.WriteLine("The sum of " + a + " and " + b + " is: " + sum);
Console.WriteLine(d + " minus " + b + " is: " + subtraction);
Console.WriteLine("The product of " + b + " and " + c + " is: " + product);
Console.WriteLine("The division of " + d + " by " + b + " is: " + division);
Console.WriteLine("The remainder when dividing " + a + " by " + b + " is: " + remainder);
Console.WriteLine("Hi! Write a number");
e = int.Parse(Console.ReadLine());
Console.WriteLine("Can you write another number please?");
f = double.Parse(Console.ReadLine());
Console.WriteLine("The sum of " + e + " and " + f + " is: " + sum2);