rail, 143 bytes

Result

AC

Duration

1242ms

Code [DL]

$ 'main':    /-iioiii\    /-{main}#
 \-ii{dup}iq<         -eq<
             \-oiiiii/    \-#
$ 'dup' (a -- a a)
 \-(!store!)--(store)-(store)-#

stdin

689 561
144 841
852 894
413 951
813 319
498 442
917 773
599 833
838 681
244 436
522 669
166 228
871 279
977 776
215 531
814 149
849 492
988 549
638 339
137 174
251 255
747 248
496 997
811 411
942 291
242 416
433 345
312 662
846 646
947 772
644 443
954 565

stdout

54893479642627514831229124366745

stderr

Crash: A read was attempted when there is no more inputIndex Out Of Bounds for the 'cut' command

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffcdd1e3cf0 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55ccde6acd30 /* 7 vars */) = 0
12    execve("/usr/bin/rail", ["/usr/bin/rail", "/volume/CODE"], 0x55ccde6acd40 /* 7 vars */ <unfinished ...>
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    <... execve resumed>)             = 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} ---
10    +++ exited with 0 +++