$ hexdump -C in.txt | head -1
00000000  e6 88 96 e5 95 8f 20 57  41 4b 55 4d 4f 4e 20 31  |...... WAKUMON 1|
$ unicode_char_name_fm_code_point.pl e6 88 96
e6 88 96 : U+6216: CJK UNIFIED IDEOGRAPH-6216
$ unicode_char_name_fm_code_point.pl e5 95 8f
e5 95 8f : U+554f: CJK UNIFIED IDEOGRAPH-554F

##</code><code>##

$ hexdump -C out.txt | head -1
00000000  c3 a4 c2 b8 2c 20 35 35  35 2e 37 30 38 35 35 36  |...., 555.708556|
$ unicode_char_name_fm_code_point.pl c3 a4
c3 a4 : U+e4: LATIN SMALL LETTER A WITH DIAERESIS
$ unicode_char_name_fm_code_point.pl c2 b8
c2 b8 : U+b8: CEDILLA

##</code><code>##

$ hexdump -C out2.txt | head -2
00000000  e4 b8 2c 20 35 35 35 2e  37 30 38 35 35 36 37 30  |.., 555.70855670|
00000010  39 33 36 0a e7 ac 31 34  ef bc 32 30 30 38 ef bc  |936...14..2008..|
$ unicode_char_name_fm_code_point.pl e4 b8 2c
e4 b8 2c : U+4e2c: CJK UNIFIED IDEOGRAPH-4E2C   ERROR! (turn on dbg prt stmt)
$ unicode_char_name_fm_code_point.pl e7 ac 31
e7 ac 31 : U+7b31: CJK UNIFIED IDEOGRAPH-7B31   ERROR! (turn on dbg prt stmt)
$ unicode_char_name_fm_code_point.pl ef bc 32
ef bc 32 : U+ff32: FULLWIDTH LATIN CAPITAL LETTER R   ERROR! (turn on dbg prt stmt)