canvas, 131 bytes

Result

AC

Duration

2060ms

Code [DL]

╶［：Ｋｃ８％？┐ｗＸ｝｝ＷｙＯ╶：［：Ｋｃ８％？┐ｌｘＫ；Ｌ└；－╵×＋ｗ｝┐｝Ｌ｝“

stdin

                 T                                
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
        K                                         

stdout

                 T
                 T
                 T
                 T
                 T
                 T
                 T
                 T
                 T
                 T
                 T
                 T
        KTTTTTTTTT

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffdf8fb0640 /* 9 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x556e26ed6d68 /* 9 vars */ <unfinished ...>
12    execve("/usr/bin/node", ["/usr/bin/node", "/root/Canvas/node.js", "/volume/CODE"], 0x556e28362068 /* 9 vars */ <unfinished ...>
11    <... execve resumed> )            = 0
12    <... execve resumed> )            = 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} ---
14    +++ exited with 0 +++
17    +++ exited with 0 +++
15    +++ exited with 0 +++
16    +++ exited with 0 +++
13    +++ exited with 0 +++
19    +++ exited with 0 +++
22    +++ exited with 0 +++
21    +++ exited with 0 +++
20    +++ exited with 0 +++
18    +++ exited with 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=141, si_stime=7} ---
10    +++ exited with 0 +++