oh, 43 bytes

Result

INVALID

Duration

925ms

Code [DL]

sed -e "s/.\(\(.\)\2 .\|.. \(.\)\)../\2\3/"

stdin

866 826
158 538
442 667
285 686
341 242
151 519
794 488
122 275
856 657
699 998
776 975
855 881
941 134
153 847
298 995
297 797
489 694
533 431
469 895
485 554
762 442
996 551
699 692
138 885
476 734
958 581
766 687
688 772
556 872
855 556
845 447
755 343

stdout

866 826
158 538
442 667
285 686
341 242
151 519
794 488
122 275
856 657
699 998
776 975
855 881
941 134
153 847
298 995
297 797
489 694
533 431
469 895
485 554
762 442
996 551
699 692
138 885
476 734
958 581
766 687
688 772
556 872
855 556
845 447
755 343

stderr

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffcf2a3fdf0 /* 7 vars */) = 0
12    execve("/bin/cat", ["cat", "-"], 0x55ec352d8048 /* 7 vars */) = 0
14    execve("/usr/bin/go", ["/usr/bin/go", "env", "GOPATH"], 0x55ec352d8078 /* 7 vars */ <unfinished ...>
12    +++ exited with 0 +++
14    <... execve resumed>)             = 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} ---
16    +++ exited with 0 +++
17    +++ exited with 0 +++
18    +++ exited with 0 +++
15    +++ exited with 0 +++
14    +++ exited with 0 +++
13    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
13    execve("/root/go/bin/oh", ["/root/go/bin/oh", "/volume/CODE"], 0x55ec352d8068 /* 7 vars */) = 0
25    execve("/bin/sed", ["sed", "-e", "s/.((.)2 .|.. (.))../23/"], 0xc00008ec80 /* 8 vars */) = 0
25    +++ exited with 0 +++
13    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
22    +++ exited with 0 +++
21    +++ exited with 0 +++
23    +++ exited with 0 +++
20    +++ exited with 0 +++
19    +++ exited with 0 +++
24    +++ exited with 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=1, si_stime=6} ---
11    +++ exited with 0 +++