#include "stdio.h"
typedef enum weekday
{sun,mon,tue,wed,thu,fri,sat} week;
typedef enum ledstate{on,off,tri} state;
void main(){
week a,b,c,d;
state ledon,ledoff,ledtri;
a=sun;
b=mon;
c=tue;
ledon=on;
ledoff=off;
ledtri=tri;
d=(enum weekdat)4;
printf("%d
%d
%d
%d
",a,b,c,d);
printf("ledon=%d
ledoff=%d
ledtri=%d
",ledon,ledoff,ledtri);
}