powershell, 32 bytes

Result

WA

Duration

1713ms

Code [DL]

$input|%{$_[$_.4 -eq $_[5]?4:2]}

stdin

733 262
615 334
588 887
219 194
199 793
141 113
765 342
192 291
191 119
611 718
466 617
617 147
513 135
586 685
915 534
799 991
233 382
366 157
178 414
722 554
657 118
173 574
246 631
447 623
456 684
746 968
548 441
641 715
879 577
399 664
989 884
417 151

stdout

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

stderr

strace

15    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffe889a38f0 /* 6 vars */) = 0
17    execve("/usr/bin/pwsh", ["/usr/bin/pwsh", "/volume/CODE"], 0x558087281c28 /* 6 vars */) = 0
16    execve("/bin/cat", ["cat", "-"], 0x558087281c10 /* 6 vars */) = 0
16    +++ exited with 0 +++
15    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
20    +++ exited with 0 +++
17    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
22    +++ exited with 0 +++
17    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=22, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
36    +++ exited with 0 +++
37    +++ exited with 0 +++
35    +++ exited with 0 +++
34    +++ exited with 0 +++
33    +++ exited with 0 +++
30    +++ exited with 0 +++
28    +++ exited with 0 +++
29    +++ exited with 0 +++
27    +++ exited with 0 +++
25    +++ exited with 0 +++
32    +++ exited with 0 +++
26    +++ exited with 0 +++
24    +++ exited with 0 +++
31    +++ exited with 0 +++
23    +++ exited with 0 +++
21    +++ exited with 0 +++
19    +++ exited with 0 +++
18    +++ exited with 0 +++
17    +++ exited with 0 +++
15    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=43, si_stime=12} ---
15    +++ exited with 0 +++