#include <stdlib.h>
#include <stdio.h>
#include  <sys/types.h>
#include <stdbool.h>

int p1[2];
int p2[2];
int p3[2];

void son1() {
    int tmp = 1;
    for (int i = 0; i < 100; i++) {
        int id;
        // puts("kokokokokoko1");
        read(p1[0], &id, sizeof(id));
        printf("%s\n", "*****");
        fflush(stdout);
        if (id == 2)
            write(p3[1], &tmp, sizeof(tmp));
        if (id == 3)
            write(p2[1], &tmp, sizeof(tmp));
    }
    exit(0);
}

void son2() {
    int tmp = 2;
    for (int i = 0; i < 100; i++) {
        int id;
        read(p2[0], &id, sizeof(id));
        printf("%s\n", "***");
        fflush(stdout);
        write(p1[1], &tmp, sizeof(tmp));
    }
    exit(0);
}

void son3() {
    int tmp = 3;
    for (int i = 0; i < 100; i++) {
        int id;
        read(p3[0], &id, sizeof(id));
        printf("%s\n", "**");
        fflush(stdout);
        write(p1[1], &tmp, sizeof(tmp));
    }
    exit(0);
}

int main() {
    int p1_desk = pipe(p1);
    int p2_desk = pipe(p2);
    int p3_desk = pipe(p3);
    int tmp = 2;
    write(p1[1], &tmp, sizeof(tmp));
    pid_t fDesc1 = fork();
    if (fDesc1 == 0)
        son1();
    pid_t fDesc2 = fork();
    if (fDesc2 == 0)
        son2();
    // pid_t fDesc3 = fork();
    // if (fDesc3 == 0)
    son3();
    return 0;
}