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Timofey 1

Timofey
1
spbctf_4_x86_64
Author: Timofey Milovanov (tmilovanov)

Language: C

Download binary: spbctf_4_x86_64
Windows: spbctf_4.exe

Binary expects a string of digits as its argument. If it passes the checks, it will show the flag.

/!\ If the flag doesn't work, ask orgs (vk.com/spbctf)

There are multiple inputs that satisfy the binary. Try dragging digits starting from beginning, one by one, to the needed places.

Flag:


30 30 30 30 30 30 30 30 30 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
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