jelly, 37 bytes

Result

AC

Duration

1056ms

Code [DL]

%84»
ƈƈ¹Ð¿ỴṖ»\YOç\Ọs51Y

stdin

                                     T            
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                    K                             

stdout

                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                                     T             
                    KKKKKKKKKKKKKKKKKT            

stderr

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffec5eb1b80 /* 8 vars */) = 0
13    execve("/usr/bin/python3", ["/usr/bin/python3", "/root/jelly/jelly", "fu", "/volume/CODE"], 0x56052b7970b8 /* 8 vars */) = 0
12    execve("/bin/cat", ["cat", "-"], 0x56052b797068 /* 8 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    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=18, si_stime=1} ---
11    +++ exited with 0 +++