jq, 23 bytes

Result

AC

Duration

761ms

Code [DL]

.[index(.[2:3])*2:][:1]

stdin

822 214
721 338
585 587
788 434
572 771
242 528
288 486
294 945
318 212
177 778
277 171
342 449
862 224
755 592
972 294
427 242
445 116
832 958
226 572
773 371
191 792
127 798
566 992
644 449
912 122
177 883
778 279
239 266
338 364
511 789
493 338
897 875

stdout

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

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7fff5f9c6df0 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x558f1ac39cf8 /* 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=0, si_stime=0} ---
13    execve("/usr/bin/jq", ["/usr/bin/jq", "-rR", "-f", "/volume/CODE"], 0x558f1c204430 /* 7 vars */) = 0
13    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=3, si_stime=0} ---
10    +++ exited with 0 +++