The first character is U+6A02 and the second is U+F914. When converted to EUC-KR, they should be "xE4 xC5" and "xD1 x%E2", respectively. Press the submit button and see what's in the query parameter. It should read %E4%C5%D1%E2.
The second input field has U+03A9 and U+2126. They should be "xA5 xD8' and 'xA7 xD9', respecitvely.