#define NULL 0
#define EOF (-36)
#define FILE int
#define	EOS	0
#define	EOL	10
#define	BKSP	8
#define	CR	13
#define	FFEED	12
#define TAB	9

#define TRUE 1
#define FALSE 0

#define FOREVER for(;;)

#define unsigned

extern FILE *stderr;
extern FILE *stdin;
extern FILE *stdout;