#include <stdio.h>

int main(void)
{
  int a = 5;
  int *ptr;
  ptr = &a;
  int *b = NULL;
  b = 7;

  char initial = 'A';
  char *surname = "Tiger";
  double age = 14.5;
  printf("Hello Mr %c %s, aged %g %d - %d\n", initial, surname, age, *ptr, b);

}