// Test 2 ex 7
#include <iostream>
#include <string>

using namespace std;

int arrive(int a){
    a++;
    return a;
}

int depart(int d){
    d++;
    return d;
}
int main(){
    int input = 0;

    int dep = 0;
    int arr = 0;
    while(input != -1){
        cout << "Press 1 when airplane arrives" << endl;
        cout << "Press 2 when airplane departs" << endl;
        cout << "Press -1 to stop the execution." << endl;
        cin >> input;
        if(input == 1){
            arr = arrive(arr);
        } else if(input == 2){
            dep = depart(dep);
        }

    }

    cout << "Total number of landed airplanes " << arr << endl;
    cout << "Total number of departed airplanes " << dep << endl;

    return 0;
}