gistfile1.txt

#include <iostream>

int main() {
    const int SIZE = 17;
    int arr[SIZE];

    std::cout << "Enter 17 two-digit integers: ";
    for (int i = 0; i < SIZE; ++i) {
        std::cin >> arr[i];
        if (arr[i] < 10 || arr[i] > 99) {
            std::cerr << "Error: Number must be two digits." << std::endl;
            return 1;
        }
    }

    int totalSum = 0;
    for (int i = 0; i < SIZE; ++i) {
        int number = arr[i];
        while (number > 0) {
            totalSum += number % 10;
            number /= 10;            
        }
    }

    std::cout << "Sum of array digits: " << totalSum << std::endl;

    return 0;
}