#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/wait.h>

enum { INTEGER_BASE = 10 };

int main(int argc, char *argv[])
{
    FILE *f;
    pid_t pid;
    int ans = 0;
    int n = strtol(argv[1], NULL, INTEGER_BASE);
    for (int i = 0; i < n; ++i) {
        if (i >= argc) {
            break;
        }
        char buf[PATH_MAX]={0};
        f = fopen(argv[2+i], "r");
        fscanf(f, "%s", buf);
        fclose(f);

        pid = fork();
        if (pid == -1) {
            return 1;
        } else if (!pid) {
            execlp(buf, buf, NULL);
            _exit(1);
        }
    }

    int status;
    while (wait(&status) > 0)
    {
        ans += (WIFEXITED(status) && !WEXITSTATUS(status));
    }

    for (int i = n + 2; i < argc; ++i) {
        char buf[PATH_MAX]={0};
        f = fopen(argv[i], "r");
        fscanf(f, "%s", buf);
        fclose(f);

        pid = fork();
        if (pid == -1) {
            return 1;
        } else if (!pid) {
            execlp(buf, buf, NULL);
            _exit(1);
        }
        wait(&status);
        ans += (WIFEXITED(status) && !WEXITSTATUS(status));
    }
    printf("%d\n", ans);
    fflush(stdout);

    return 0;
}