starry, 127 bytes

Result

AC

Duration

929ms

Code [DL]

` , + .        +    * +' `            +            +  *  `  + + ,* + .       +    **  + +      + *  +  ' ,  + * . +       + * '

Disassembly

[[:label, 0],
 [:char_in],
 [:dup],
 [:char_out],
 [:push, 3],
 [:%],
 [:dup],
 [:jump, 0],
 [:label, 1],
 [:push, 7],
 [:push, 7],
 [:*],
 [:label, 2],
 [:swap],
 [:dup],
 [:char_in],
 [:+],
 [:dup],
 [:char_out],
 [:push, 2],
 [:%],
 [:+],
 [:swap],
 [:dup],
 [:push, 1],
 [:-],
 [:swap],
 [:jump, 2],
 [:char_in],
 [:swap],
 [:-],
 [:char_out],
 [:dup],
 [:push, 2],
 [:-],
 [:jump, 1]]

stdin

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            K                                     

stdout

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            K!""""""""""!

stderr

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffc2c156740 /* 9 vars */) = 0
12    execve("/bin/cat", ["cat", "-"], 0x563a29f42d70 /* 9 vars */) = 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    execve("/usr/local/ruby-2.6.3/bin/ruby", ["/usr/local/ruby-2.6.3/bin/ruby", "/root/starry.rb", "/volume/CODE"], 0x563a2b402068 /* 9 vars */) = 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=10, si_stime=4} ---
11    +++ exited with 0 +++