#include <stdio.h>
#include <stdlib.h>

volatile int global_counter = 0;

int main(int argc, char **argv) {
    printf("Program started with %d arguments\n", argc - 1);

    for (int i = 1; i < argc; i++) {
        printf("  arg[%d]: %s\n", i, argv[i]);
    }

    global_counter = argc;
    printf("Set global_counter to %d\n", global_counter);

    if (argc > 1) {
        int val = atoi(argv[1]);
        global_counter += val;
        printf("Added %d, global_counter now = %d\n", val, global_counter);
    }

    return 0;
}