void insert(u32 x, u32 y, u32 f){
	if (in_list(x,y,f) == 1){
		return;
	}
	else{
		olnode* newnode = calloc(1,sizeof(newnode));
		newnode->x = x/8;
		newnode->y = y/8;
		newnode->fvalue = f;
		olnode* temp = head;
		while(temp != NULL){
			printf("%d\n",temp->fvalue);
			if(is_smaller(newnode,temp) == 1){
				if(temp->parent == NULL){
					printf("NOOOOOOOOOOOOOOO\n");
					newnode->next = temp;
					newnode->parent = NULL;
					temp->parent = newnode;
					head = newnode;
					return;
				}
				else{
					printf("HELLO\n");
					newnode->parent = temp->parent;
					newnode->parent->next = newnode;
					temp->parent = newnode;
					newnode->next = temp;
					return;
				}
			}
			else if(temp->next == NULL){		// end of list
			 	temp->next = newnode;
				newnode->parent = temp;
				newnode->next = NULL;
				printf("%d\n",temp->fvalue);
				printf("HELLO\n");
				return;
			}
			temp = temp->next;
		}
	}
}