python3, 100 bytes

Result

WA

Duration

781ms

Code [DL]

i=input().find('T')
while 1:
 print(' '*i+'*')
 d=input().find('K')
 if!~d:-print(' '*d+'*'*(i-d+1))

stdin

                                 T                
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
         K                                        

stdout

stderr

  File "/volume/CODE", line 5
    if!~d:-print(' '*d+'*'*(i-d+1))
      ^
SyntaxError: invalid syntax

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffcddc14c20 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x5650cde56d38 /* 7 vars */) = 0
12    execve("/usr/bin/python3", ["/usr/bin/python3", "/volume/CODE"], 0x5650cde56d50 /* 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 1 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=1, si_utime=2, si_stime=0} ---
10    +++ exited with 1 +++