#include <iostream>

using namespace std;

struct Node{
    int data;
    Node * next;
};

Node * head;

void insertInOrder(int value){
    if (head == NULL){
	head = new Node;
	head->data = value;
	head->next = NULL;
    }
    
}
void error(){
    cout << "FAILED TEST!!!!\n";
    exit(-1);
}

int main(){

    head = NULL;
    insertInOrder(7);
    if (head->data != 7)
	error();
    if (head->next != NULL)
	error();
	

    return 0;
}