#include <iostream>
#define OPEN_PARENTHESIS (
#define CLOSE_PARENTHESIS )
#define OPEN_BRACES {
#define CLOSE_BRACES }
#define INTEGER int
#define STANDARD_LIB std::
#define CONSOLE_OUT cout
#define ANGLE_BRACKETS <<
#define MESSAGE "Hello World\n"
#define SEMI ;
#define CLASS_NAME main
INTEGER CLASS_NAME OPEN_PARENTHESIS CLOSE_PARENTHESIS OPEN_BRACES
STANDARD_LIB CONSOLE_OUT ANGLE_BRACKETS MESSAGE SEMI
CLOSE_BRACES
Everything is defined