public static void Main()
Console.WriteLine("Enter the first number here: ");
firstNum = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter the second number here: ");
secondNum = Convert.ToInt32(Console.ReadLine());
Console.WriteLine(" Choose operator(x, / +, / -, / ÷)");
operation = Console.ReadLine();
result = firstNum * secondNum;
Console.WriteLine(firstNum + " x " + secondNum + " = " + result);
else if (operation == "/")
result = firstNum / secondNum;
Console.WriteLine(firstNum + " / " + secondNum + " = " + result);
else if (operation == "+")
result = firstNum + secondNum;
Console.WriteLine(firstNum + " + " + secondNum + " = " + result);
else if (operation == "-")
result = firstNum - secondNum;
Console.WriteLine(firstNum + " - " + secondNum + " = " + result);
Console.WriteLine("Please try again!");