Overview#

The page shows well-formatted Vietnamese rap lyrics (Verse, Pre-Chorus, Chorus, Outro). The prompt hints that something is “odd” about the lyrics. Viewing the HTML reveals certain fragments wrapped in <mark>...</mark> elements. Those marked fragments, read in order, form the flag.

Manual Extraction#

Reading each <mark> in document order yields:

1. V
2. 1
3. T (from “M-TP”, the letter T is marked)
4. {
5. MCK
6. pap-
7. cool
8. ooh-
9. yeah
10. }

Browser Console One-liner#

1
Array.from(document.querySelectorAll('mark'))
2
  .map(m => m.textContent)
3
  .join('');
4
// => "V1T{MCK-pap-cool-ooh-yeah}"

Python Script#

1
#!/usr/bin/env python3
2
import re, pathlib
3

4
html = pathlib.Path('index.html').read_text(encoding='utf-8')
5
marks = re.findall(r'<mark>([^<]+)</mark>', html)
6

7
print("MARK THE LYRICS - FLAG EXTRACTOR")
8
for i, m in enumerate(marks, 1):
9
    print(f"{i}. {m}")
10

11
flag = ''.join(marks)
12
print("\nCombined:", flag)

Flag#

1
V1T{MCK-pap-cool-ooh-yeah}