#include 
    #include 
    using namespace std;
    int Addition(int number, ...)
    {
        int sum = 0;
        va_list args;
        va_start (args,number);
        for (int i = 0; i < number; i++) 
        {
            int number = va_arg (args,int);
            sum += number;
        }
        va_end (args);
        return sum;
    }
    int main (void)
    {
        int Result = Addition(1, 10, 9, -1, 13, 23, -2, 9, 17);
        cout << "The result is " << Result;
        return 0;
    }