bool compare_lists(SinglyLinkedListNode* head1, SinglyLinkedListNode* head2) {
    SinglyLinkedListNode* local_head1 = head1;
    SinglyLinkedListNode* local_head2 = head2;
    while(local_head1 != NULL && local_head2 != NULL)
    {
            if(local_head1->data == local_head2->data)
            {
                    local_head1 = local_head1->next;
                    local_head2 = local_head2->next;

            }
            else {
                return 0;
            }
        if(local_head1 != NULL && local_head2 != NULL){
        }
        else
        {
            if(local_head1 == NULL && local_head2 == NULL) return 1;
            else return 0;
        }
      
    }
    return 1;
    }