#include <iostream>
using namespace std;

struct LIST{
    int value;
    struct LIST *next;
};
LIST *GetTail(LIST *head){
    if(!head)
     return NULL;
    while(head->next != NULL)
     head = head->next;
    return head;
}
void AddEl(LIST *head, int value){
    LIST *newEl = new LIST;
    newEl->value = value;
    newEl->next = NULL;
    if(!head)
     head = newEl;
    else
    {
        head = GetTail(head);
        head->next = newEl;
    }
}

int main()
{
    LIST *head = NULL;
}