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hacc/misc/undo/output.log
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2026-07-03 01:06:18 +09:00

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===Welcome to the Text Transformations Challenge!===
Your goal: step by step, recover the original flag.
At each step, you'll see the transformed flag and a hint.
Enter the correct Linux command to reverse the last transformation.
--- Step 1 ---
Current flag: KXA2OTgxcHBxLWZhMDFnQHplMHNmYTRlRy1nazNnLXRhMWZlcmlyRShTR1BicHZj
Hint: Base64 encoded the string.
Enter the Linux command to reverse it: base64 -d
Correct!
--- Step 2 ---
Current flag: )p6981ppq-fa01g@ze0sfa4eG-gk3g-ta1ferirE(SGPbpvc
Hint: Reversed the text.
Enter the Linux command to reverse it: rev
Correct!
--- Step 3 ---
Current flag: cvpbPGS(Eriref1at-g3kg-Ge4afs0ez@g10af-qpp1896p)
Hint: Replaced underscores with dashes.
Enter the Linux command to reverse it: tr - _
Correct!
--- Step 4 ---
Current flag: cvpbPGS(Eriref1at_g3kg_Ge4afs0ez@g10af_qpp1896p)
Hint: Replaced curly braces with parentheses.
Enter the Linux command to reverse it: tr '()' '{}'
Correct!
--- Step 5 ---
Current flag: cvpbPGS{Eriref1at_g3kg_Ge4afs0ez@g10af_qpp1896p}
Hint: Applied ROT13 to letters.
Enter the Linux command to reverse it: tr 'A-Za-z' 'N-ZA-Mn-za-m'
Correct!
Congratulations! You've recovered the original flag:
>>> picoCTF{Revers1ng_t3xt_Tr4nsf0rm@t10ns_dcc1896c}