let firstNumber = parseFloat(prompt("Enter the first number:"));
let secondNumber = parseFloat(prompt("Enter the second number:"));
let operation = prompt("Enter the operation (+, -, *, /):");
let result;

switch (operation) {
  case "+":
    result = firstNumber + secondNumber;
    break;
  case "-":
    result = firstNumber - secondNumber;
    break;
  case "*":
    result = firstNumber * secondNumber;
    break;
  case "/":
    result = firstNumber / secondNumber;
    break;
  default:
    console.log("Invalid operator");
    break;
}

console.log("The result is: " + result);