#include <stdarg.h>
#include <stdio.h>

int sum_all(int count, ...) {
    int total = 0;
    int i, num;
    va_list ap; // 1. Declare va_list variable
    va_start(ap, count); // 2. Initialize list (ap points after 'count')
    for (i = 0; i < count; i++) {
        num = va_arg(ap, int); // 3. Access next int argument
        total += num;
    }
    va_end(ap); // 4. Clean up the list
    return total;
}
int main() {
    // Calling with 3 numbers (10, 20, 30)
    int result1 = sum_all(3, 10, 20, 30);
    printf("Sum 1: %d\n", result1); // Output: Sum 1: 60

    // Calling with 5 numbers
    int result2 = sum_all(5, 1, 2, 3, 4, 5);
    printf("Sum 2: %d\n", result2); // Output: Sum 2: 15

    return 0;
}