python3, 64 bytes

Result

ERROR

Duration

621ms

Code [DL]

import sys
for s in sys.stdin:print(s[:s.find("__")].count("|"))

stdin

|__|___|__
||__|_____
||||__|||_
|_|_||_|__
|_||||_||_
|_|__|||__
||_||_|_||
||_|__|__|
||__|__|||
||_||_||_|
|__|__|_|_
||||||||__
|||__|_|__
|_|____||_
||__|_||__
||_||||_||
|__||_____
||_|__|||_
||___|__|_
|_|___||__
|_|||_|_||
||_||_|_|_
||__|||__|
|__||||||_
||__||__||
|__||||_|_
||_|_____|
|||||_|__|
||||__||_|
|_||_|__||

stdout

1
2
4
5
7
2
7
3
2
7
1
8
3
2
2
8
1
3
2
2
7
6
2
1
2
1
3
6
4
4

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffd3d9c86f0 /* 7 vars */) = 0
12    execve("/usr/bin/python3", ["/usr/bin/python3", "/volume/CODE"], 0x55ce5e832d50 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55ce5e832d38 /* 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=1, si_stime=0} ---
10    +++ exited with 0 +++