perl, 26 bytes

Result

WA

Duration

1002ms

Code [DL]

print/(.)\1 /||/ ./g for<>

stdin

931 556
134 647
414 117
795 551
819 475
249 934
488 892
377 378
462 261
654 512
942 228
277 775
122 881
855 126
528 225
712 128
955 924
422 922
588 886
359 984
934 358
893 292
914 148
344 557
776 744
577 738
857 337
378 641
525 475
542 243
437 938
417 974

stdout

 5 6 1 5 4 911 2 5 2111 2 1111 9 3 2 11 71 3 6 4 2 9 9

stderr

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7fff98e5a190 /* 7 vars */) = 0
12    execve("/bin/cat", ["cat", "-"], 0x558539c9fd30 /* 7 vars */) = 0
13    execve("/usr/bin/perl", ["/usr/bin/perl", "/volume/CODE"], 0x558539c9fd40 /* 7 vars */) = 0
12    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
13    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
11    +++ exited with 0 +++