#include <stdio.h>

#define FLAG
#define PI 3.14159
#define CONTINENT_1 "Oceanie"
#define MAX(a,b) ((a>b) ? a : b)

void main(void) {
  printf("%lf\n",PI);
  printf("%s\n", CONTINENT_1);
  printf("%d\n", MAX(3, 1));
  printf("%d\n", MAX(2, 6));
  printf("%lf\n", MAX(3.5, 1.8));
  printf("%lf\n", MAX(-2.6, 7.8));
}