#include <stdio.h>

#define E 2.71828
#define PI 3.1415926
#define SQUARE(X) X*X

int i = 2;
double x = E;
char* my_str = "this is a silly string";

int main(int argc, char* argv[]) {

  int j;
  double y;

  j = 3;
  y = SQUARE(PI);

  printf("hello there\n");
  printf("i= %d --- z= %lf\n", i, x);
  printf("j= %d --- y= %lf\n", j, y);

  printf("%p\n", my_str);
  printf("%s\n", my_str);
}