#include <stdio.h>

typedef struct sem_t
{
    ;
} sem_t;

void* ThreadOne(void* voidPass);
void* ThreadTwo(void* voidPass);
void sem_post(sem_t* semaphore);
void sem_wait(sem_t* semaphore);

sem_t aArrived, bArrived;


int main(void)
{
    return 0;
}

//  Thread A for testing multithread
void* ThreadOne(void* voidPass)
{
    printf("a1\n");
    sem_post(&aArrived);
    sem_wait(&bArrived);
    printf("a2\n");
}

//  Thread B for testing multithread
void* ThreadTwo(void* voidPass)
{
    printf("b1\n");
    sem_post(&bArrived);
    sem_wait(&aArrived);
    printf("b2\n");
}