Sketch the corresponding process tree. Be sure to indicate outputs and circle synchronization points, if they exist

main(){

int x=0;

printf("1");

if (fork() == 0){

printf("2");

x+=1;

} else if (fork()==0){

printf("3");

x+=1;

}

if (x<1){

while (wait(NULL)>0);

printf("4");

} else{

printf("5");

}

}