#include <fstream.hfa>

int main() {
	enum(int) E { BBB = 3, AAA, AA, AB, B, CB, AC };
	E e;

	try {
		for () {
			try {
				sin | e;
			} catch( missing_data * ) {
				sout | "missing data";
				continue;								// try again
			} // try
			sout | e | "= " | value( e );
		} // for
	} catch( end_of_file * ) {
	} // try
} // main