입력된 두 값은 "
Warning: Undefined array key "a" in /users/2018/i1858038/public_html/2019/webprog/ch03/exam03-10.php on line 9
" 와 (과) "
Warning: Undefined array key "b" in /users/2018/i1858038/public_html/2019/webprog/ch03/exam03-10.php on line 11
" 입니다.