#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>

int main(int argc, char *argv[]) {
  
    sleep(atoi(argv[1]));

    for (int i = 0; i < atoi(argv[2]); i++) {
        int fd = open(argv[3], O_RDONLY);
        
        if (fd == -1) {
            printf("open failed: %s\n", strerror(errno));
            return 1;
        }
        close(fd);
    }

    return 0;
}