#include <stdio.h>

typedef enum {
   COURSE,
   RESEARCH, 
   STAFF
} person_t;


typedef struct {
    char program[10];
    short units;
} coursework;

typedef struct {
    char* supervisor;
    short confirmed;
    char* thesistitle;
} rhd;


typedef struct {
    time_t contract_exiry;
} staff;


typedef union {
    coursework cw;
    rhd	res;
    staff st;
} person_info;


typedef struct {
    int id;
    person_t type;
    person_info info;
} person;


person* read_person();
void print_person(person* p);
double library_fine(person* p);
void print_details(person_info pi);

int main(int argc, char** argv) {
    person* p;
    person* arr[20000];
    int i, id;
    /* load a large number of people */
    for (i=0;i<20000;++i) {
	arr[i]=read_person();
    }
    scanf("%d", &id);
    /* now search for that id */
    for (i=0;i<20000;++i) {
	p=arr[i];
	if (p->id==id) {
	  print_details(p->info);
	}
    }
}