fish, 54 bytes

Result

AC

Duration

593ms

Code [DL]

i:f(?\:ab*(:?ii~?~
>$ ~0>~:@@:@%9=?\
\             o:/

stdin

totokyokyokyokyokyototokyotokyokyototototokyotokyo

stdout

kkkk

stderr

something smells fishy...

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffec4c58858 /* 7 vars */) = 0
12    execve("/bin/cat", ["cat", "-"], 0x7fef1f659268 /* 7 vars */ <unfinished ...>
13    execve("/usr/bin/python3", ["/usr/bin/python3", "/root/fish.py", "/volume/CODE"], 0x7fef1f659368 /* 7 vars */ <unfinished ...>
12    <... execve resumed>)             = 0
13    <... execve resumed>)             = 0
12    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
13    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=3, si_stime=1} ---
11    +++ exited with 0 +++