#include <iostream>
#include <cstdlib>

using namespace std;

int main()
{
    int number{0};

    cout << "Enter a number between 1 and 999: ";
    cin >> number;

    if (number < 1) {
        cerr << "Number too small. Must be at least 1.\n";
        return EXIT_FAILURE;
    }

    if (number >= 1000) {
        cerr << "Number too big. Must be less than 1000.\n";
        return EXIT_FAILURE;
    }

    cout << "Counting up from " << number << ":\n";

    for (; number < 1000; ++number) {
        cout << number;
        
        // Start a new line every 10 numbers
        if (number % 10 == 9) {  // Changed from 0 to 9
            cout << "\n";
        } else {
            cout << " ";
        }
    }

    cout << "Finished counting!\n";
    return EXIT_SUCCESS;
}