#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <limits.h>
#include <ctype.h>
#include <dirent.h>
#include <string.h>

char buf[10000];
int ans;

int
main(int argc, char **argv)
{
    FILE *f;
    char c;
    int cnt;
    int N = atoi(argv[1]), i;
    for (i = 0; i + 2 < argc && i < N; i++) {
        f = fopen(argv[i + 2], "r");
        cnt = 0;
        while (fscanf(f, "%c", &c) > 0) {
            if (c == '\n') {
                buf[cnt] = '\0';
                break;
            }
            buf[cnt++] = c;
        }
        fclose(f);
        if (!fork()) {
            execlp(buf, buf, NULL);
            exit(1);
        }
    }
    int status;
    while (wait(&status) > 0) {
        if (WIFEXITED(status) && !WEXITSTATUS(status)) {
                ans++;
        }
    }
    for (i = N + 2; i < argc; i++) {
        f = fopen(argv[i], "r");
        cnt = 0;
        while (fscanf(f, "%c", &c) > 0) {
            if (c == '\n') {
                buf[cnt] = '\0';
                break;
            }
            buf[cnt++] = c;
        }
        fclose(f);
        if (!fork()) {
            execlp(buf, buf, NULL);
            exit(1);
        } else {
            wait(&status);
            if (WIFEXITED(status) && !WEXITSTATUS(status)) {
                ans++;
            }
        }
    }
    printf("%d\n", ans);
    return 0;
}