#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>

int main(void){
	char pid[10];
	sprintf(pid, "%d", getpid());
	printf("Macierzysty PID: %d\n", getpid());

	if (fork()==0){//P1 lewy
		printf("P1 lewy PID: %d\n", getpid());
		if (fork()==0){//P11 lewy
			printf("P11 lewy PID: %d\n", getpid());
			if (fork()==0){ //P111 lewy
				printf("P111 lewy PID: %d", getpid());
				sleep (120);
				return 0;}
			if (fork()==0){ //P112 prawy
				printf("P112 prawy PID: %d", getpid());

				sleep (120);
				return 0;}
			sleep (120);
			return 0;}
		if(fork()==0){//P12 prawy X
			printf("P12 prawy PID: %d\n", getpid());
			//exec
			if(fork()==0) {//P22 prawy
				printf("P22 lewy PID: %d\n", getpid());
				sleep (120);
				return 0;}
			execlp("pstree", "pstree", "-c", getpid(), (char *)NULL);
			sleep(120);
			return 0;}
}

if (fork()==0){//P22 prawy
	printf("P22 prawy PID: %d\n", getpid());
	if(fork()==0){//P22 prawy
		printf("P22 prawy PID: %d\n", getpid());
		if(fork()==0){//P221 lewy
			printf("P221 lewy PID: %d\n", getpid());
			sleep (120);
			return 0;}
		if (fork()==0){//P222 prawy
			printf("P222 prawy PID: %d\n", getpid());
			sleep (120);
			return 0;}
					sleep (120);
					return 0;}
			sleep(120);
			return 0;}

return 0;

}