enum CalculationType {
    case addition
    case subtraction
    case multiplication
    case division
}

func resultMathOperation(firstNumber: Int, secondNumber: Int, operation: CalculationType) -> Int {
    var result: Int
    switch operation {
    case .addition:
        result = firstNumber + secondNumber
        print("Result of addition \(firstNumber) and \(secondNumber):")
    case .subtraction:
        result = firstNumber - secondNumber
        print("Result of subtraction \(firstNumber) and \(secondNumber):")
    case .multiplication:
        result = firstNumber * secondNumber
        print("Result of multiplication \(firstNumber) and \(secondNumber):")
    case .division:
         result = firstNumber / secondNumber
         print("Result of division \(firstNumber) and \(secondNumber):")
    }
    return result
}

let arithmeticAction = CalculationType.division

print(resultMathOperation(firstNumber: 18, secondNumber: 6, operation: arithmeticAction))