moo, 58 bytes

Result

AC

Duration

702ms

Code [DL]

1{3{i1+od1 5b}2{sdi+do75=+s1s-d3 2b}50 2c}0{ido32=1 0b}0dc

stdin

                      T                           
                                                  
                   K                              

stdout

                      T                           
                      !                           
                   K!!!                           

stderr

thread 'main' panicked at 'stdin is closed @ 18', src/main.rs:321:25
note: Run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7fff866457e0 /* 8 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x5617b6647c10 /* 8 vars */) = 0
12    execve("/usr/bin/moo", ["/usr/bin/moo", "/volume/CODE"], 0x5617b6647c28 /* 8 vars */) = 0
11    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
12    +++ exited with 101 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=101, si_utime=0, si_stime=0} ---
10    +++ exited with 101 +++