#include <iostream>
 
using namespace std;
 
int getNumber(string challenge)
{
    int tV;
    cout << challenge << ": ";
    cin >> tV;
    return tV;
}
 
int main()
{
    int test = 0;
    int num1 = 0;
    int num2 = 0;
 
    cout << "Hey there! Do you want to add or subtract?" << endl;
    cin >> test;
    switch(test)
    {
        case 1:
            num1 = getNumber("Please insert number 1");
            num2 = getNumber("Please insert number 2");
            cout << "\n Your result is " << (num1 + num2) << endl;
            break;
        case 2:
            num1 = getNumber("Please insert number 1");
            num2 = getNumber("Please insert number 2");
            cout << "\n Your result is " << (num1 - num2) << endl;
            break;
        default:
            cout << "That is not a valid option. Program is now closing." << endl;
            return 0;
    }
    return 0;
}