void remove_current(list** head, int el)
{
    list* ptr = *head;
    while(ptr->next)
    {
        if(ptr->next->num == el && ptr->next->next != NULL)
        {
            ptr = ptr->next->next;
            continue;
        }
        else{
            ptr = NULL;
        }
        ptr = ptr->next;
    }
}