#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <fcntl.h>
#include <unistd.h>

#define FLAGSIZE 64

void win() {
    char buf[FLAGSIZE];
    int fd = open("flag", O_RDONLY);
    read(fd, buf, sizeof(buf));
    puts(buf);
    close(fd);
}

void init() {
    setvbuf(stdin, 0LL, 2, 0LL);
    setvbuf(stdout, 0LL, 2, 0LL);
    setvbuf(stderr, 0LL, 2, 0LL);
}

int main() {
    init();
    int number, guess, round;
    round = rand() % 10;
    number = 0;
    for(int i = 0; i < round; ++i) {
        number += rand() % 1000000;
    }
    // 2260578
    // printf("%d\n", number);
    puts("Input your guess number: ");
    scanf("%d", &guess);
    if (guess == number) {
        win();
    }

    return 0;
}