#include <stdio.h>
#include <pthread.h>

int pinakas[10]={1,2,3,3,4,4,1,2,7,3};
int search;
int count=0;
pthread_t tid[2];
int counter[2];

void* searchPinakas(void *arg){
	int id=(int*) arg;
	int i;
	counter[id]=0;
	for(int i=5*id;i<5*(id+1);++i){
			if(pinakas[i]==search){
				counter[id]++;
			}

	}

}


int main(){
	int i=0;
	int err;
	scanf("%d",&search);

	while(i<2){
		err = pthread_create(&(tid[i]),NULL,&searchPinakas,(void*) i);
		if(err!=0){
			printf("failed to create[%d]\n",err);
		}
		else{
			printf("Thread created\n");
		}
		++i;
	}

	pthread_join(tid[0],NULL);
	pthread_join(tid[1],NULL);


	printf("%d",counter[0]+counter[1]);
}