#include <iostream>
#include <cstdlib>

using namespace std;

int main()
{
    calc:
    int a;
    int b;
    int c;
    int d;
    int e;
    int f;
    int g;
    int h;
    int i;
    int j;
    int total;
    cout << "This is a calculator. Press 1. for plus, 2. for minus 3. for multiplication 4. for division." << endl;
    cin  >> a;
    if (a == 1)
    {
        cout << "You chose plus. Tell me first number." << endl;
        cin  >> b;
        cout << "Now tell me another number." << endl;
        cin  >> c;

        total = b + c;

        cout << "Result: " << endl;
        cout << total << endl;
        cout << "-------------------------------------------------------------------------------------------" << endl;
        cout << "If you still want to count, press 1, if you want to exit, press 2." << endl;
        cin >> j;
        if (j == 1)
        {
            goto calc;
        }
        if (j == 2)
        {
            exit(0);
        }
        else
        {
            cout << "Press 1 or 2." << endl;
        }
    }
    if (a == 2)
    {
        cout << "You chose minus. Tell me first number." << endl;
        cin  >> d;
        cout << "Now tell me another number." << endl;
        cin  >> e;

        total = d - e;

        cout << "Result: " << endl;
        cout << total << endl;
        cout << "-------------------------------------------------------------------------------------------" << endl;
        cout << "If you still want to count, press 1, if you want to exit, press 2." << endl;
        cin >> j;
        if (j == 1)
        {
            goto calc;
        }
        if (j == 2)
        {
            exit(0);
        }
        else
        {
            cout << "Press 1 or 2." << endl;
        }
    }
    if (a == 3)
    {
        cout << "You chose multiplication. Tell me first number." << endl;
        cin  >> f;
        cout << "Now tell me another number." << endl;
        cin  >> g;

        total = f * g;

        cout << "Result: " << endl;
        cout << total << endl;
        cout << "-------------------------------------------------------------------------------------------" << endl;
        cout << "If you still want to count, press 1, if you want to exit, press 2." << endl;
        cin >> j;
        if (j == 1)
        {
            goto calc;
        }
        if (j == 2)
        {
            exit(0);
        }
        else
        {
            cout << "Press 1 or 2." << endl;
        }
    }
    if (a == 4)
    {
        cout << "You chose division. Tell me first number." << endl;
        cin  >> h;
        cout << "Now tell me another number." << endl;
        cin  >> i;

        total = h / i;

        cout << "Result: " << endl;
        cout << total << endl;
        cout << "-------------------------------------------------------------------------------------------" << endl;
        cout << "If you still want to count, press 1, if you want to exit, press 2." << endl;
        cin >> j;
        if (j == 1)
        {
            goto calc;
        }
        if (j == 2)
        {
            exit(0);
        }
        else
        {
            cout << "Press 1 or 2." << endl;
        }
    }
    else
    {
        cout << "Press one of the numbers to count." << endl;
        cout << "--------------------------------------------------------------------------------------------" << endl;
    }
    return 0;
}