50 LOAD+ ( B152, extras )
1 6 LOADR+

: BROWSE
    0 ACC ! L
    BEGIN
        KEY CASE
            'Q' OF EXIT ENDOF
            'B' OF B ENDOF
            'N' OF N ENDOF
            _NUM
        ENDCASE
    AGAIN
;
( I masks DO..LOOP's I. Do it as late as possible. )
: I _I ;