gs2, 23 bytes

Result

AC

Duration

888ms

Code [DL]

00000000  2a 41 29 3e 27 3c c9 ed  26 cc 50 d0 0a ea d1 d0  |*A)>'<..&.P.....|
00000010  2e d1 2e 31 07 4b 32                              |...1.K2|
00000017

stdin

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     K                                            

stdout

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     KKKKKKKKKKKK

stderr

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffe128f75a0 /* 7 vars */) = 0
12    execve("/bin/cat", ["cat", "-"], 0x55762c027d60 /* 7 vars */ <unfinished ...>
13    execve("/usr/bin/python", ["/usr/bin/python", "/root/gs2.py", "/volume/CODE"], 0x55762dfef068 /* 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=7, si_stime=2} ---
11    +++ exited with 0 +++