입력된 두 값은 "
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: Undefined array key "a" in
/users/2018/i1858018/public_html/2019/webprog/ch03/exam03-10.php
on line
9
" 와(과) "
Warning
: Undefined array key "b" in
/users/2018/i1858018/public_html/2019/webprog/ch03/exam03-10.php
on line
11
" 입니다.