fish, 69 bytes

Result

AC

Duration

1964ms

Code [DL]

0v
i<+1:?%8v?%4:o:
v   :~~<<      >1n1-
<-1v?%2^?=a:o:i^!?:
-1n>:?!;1

stdin

                         T                        
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
           K                                      

stdout

                         T                        
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
                         1                         
           K11111111111111

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffdbb3399b0 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55fd32c6cd68 /* 7 vars */) = 0
12    execve("/usr/bin/python3", ["/usr/bin/python3", "/root/fish.py", "/volume/CODE"], 0x55fd336c5068 /* 7 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 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=25, si_stime=20} ---
10    +++ exited with 0 +++