powershell, 47 bytes

Result

WA

Duration

1580ms

Code [DL]

$input|%{if($_[2] -eq $_[4]){$_[2]}else{$_[4]}}

stdin

178 993
673 717
675 574
747 448
955 557
234 996
542 665
931 167
835 674
896 717
481 819
198 982
626 622
899 633
677 748
732 626
414 246
936 835
665 861
397 516
655 229
144 464
293 313
788 885
238 889
511 442
717 779
522 573
944 346
599 598
749 447
831 374

stdout

9
7
5
4
5
9
6
1
6
7
8
9
6
6
7
6
2
8
8
5
2
4
3
8
8
4
7
5
3
5
4
3

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffdd5b19010 /* 6 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x560f3d16bc10 /* 6 vars */ <unfinished ...>
12    execve("/usr/bin/pwsh", ["/usr/bin/pwsh", "/volume/CODE"], 0x560f3d16bc28 /* 6 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} ---
15    +++ exited with 0 +++
16    +++ exited with 0 +++
12    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
31    +++ exited with 0 +++
32    +++ exited with 0 +++
30    +++ exited with 0 +++
29    +++ exited with 0 +++
28    +++ exited with 0 +++
26    +++ exited with 0 +++
27    +++ exited with 0 +++
25    +++ exited with 0 +++
24    +++ exited with 0 +++
23    +++ exited with 0 +++
22    +++ exited with 0 +++
21    +++ exited with 0 +++
20    +++ exited with 0 +++
19    +++ exited with 0 +++
18    +++ exited with 0 +++
17    +++ exited with 0 +++
14    +++ exited with 0 +++
13    +++ 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=40, si_stime=15} ---
10    +++ exited with 0 +++