#include <iostream>
using namespace std;

const int ARRAY_SIZE = 10;
const int END = -1;

typedef int IntArray[ARRAY_SIZE];

int Input(IntArray &numbers);
void Output(int size, const IntArray &numbers);

int main() {
    IntArray numbers;                 // step 0: data store on the stack
    int numCount = Input(numbers);    // step 1: input
    Output(numCount, numbers);        // step 2 & 3: process & output
    return 0;
}

int Input(IntArray &numbers) {
    int numCount = 0;
    int number;

    cout << "enter up to " << ARRAY_SIZE << " numbers (" << END << " to exit): " << endl;

    cout << "enter " << (numCount + 1) << "th number: ";
    cin >> number;

    while (numCount < ARRAY_SIZE && number != END) {
        numbers[numCount] = number;
        numCount++;

        if (numCount < ARRAY_SIZE) {
            cout << "enter " << (numCount + 1) << "th number: ";
            cin >> number;
        }
    }

    return numCount;
}

void Output(int size, const IntArray &numbers) {
    cout << "address of numbers: " << &numbers << endl;
    for (int i = 0; i < size; i++) {
        cout << "numbers[" << i << "]: " << numbers[i]
             << " at address " << &numbers[i] << endl;
    }
}