$ cat writeup.md…
$ cat writeup.md…
bug-makers
Task: Brainfuck interpreter whose output is passed to Python exec(); input is restricted to the 8 BF chars and 100 bytes. Solution: use a fixed-count BF cat (',.' repeated) to echo a Python payload from stdin into exec(), reading flag.txt — sent in a single packet to dodge PTY CRLF/EOF pitfalls.
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$sign in$ grep --similar