/* struct declaration */
typedef struct {
  int id;
  char surname[12];
  char givenname[12];
  int age;
} Record;

typedef struct node *NodePointer;
struct node {
  Record data;
  NodePointer next;
};

/* prototype declaration */
NodePointer insert(Record);
NodePointer finditem(int);
void listprint(void);
NodePointer make_1node(Record, NodePointer);

/* Global Variable head */
NodePointer head;