text: #ifndef EX15_H
  #define EX15_H
  
  #define SHM_NAME "/shm_ex15"
  #define SEM_NAME "/sema_ex15"
  #define MAX_TAM_STR 25
  #define NUM_CHILDREN 17
  #define MAX_SEATS 5
  #define SHOW_TIME 2
  #define SHOW_INTERVAL 1
  
  typedef struct {
      int seats;
      int fila;
      int terminou;
  } Show;
  
  #endif