typedef struct DataNode

{

    int id;

} DataNode;


typedef struct Node

{

    DataNode data;
    struct Node *Next;

} Node;

typedef struct List

{

    int size;
    Node *head;

} List;

List *CreateList ()

{

    List *list = (List*) malloc(sizeof(List));

    list->size = 0;
    list->head = NULL;

    return list;

}

void Push (List *list, DataNode data01)

{


Node *node = (Node*) malloc (sizeof(Node));

node->data = data01;
node->Next = list->head;
list->head = node;
list->size++;

}