make, 161 bytes

Result

WA

Duration

882ms

Code [DL]

1=$(STDIN)
f=$(if $1,$(word 2,$(filter $(wordlist 3,4,$1),$1))$(call f,$(wordlist 7,999,$1)))
a:;$(foreach d,1 2 3 4 5 6 7 8 9,$(eval 1:=$$(subst $d, $d,$$1)))$f

stdin

757 759
367 872
511 117
585 662
965 653
637 775
215 565
477 876
848 775
477 741
484 138
521 726
473 738
944 142
955 774
174 855
577 775
355 582
463 378
996 481
167 762
198 993
195 514
711 992
977 234
393 331
681 411
527 281
912 816
594 995
533 491
415 198

stdout

78155757874734587534785173478435

stderr

make: 78155757874734587534785173478435: No such file or directory
make: *** [/volume/CODE:3: a] Error 127

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffe51e80d20 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x563bd511c028 /* 7 vars */) = 0
12    execve("/usr/bin/ag_launcher", ["/usr/bin/ag_launcher", "-i", "/usr/bin/make", "-f", "/volume/CODE"], 0x563bd511c0a8 /* 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    execve("/usr/bin/make", ["/usr/bin/make", "-f", "/volume/CODE"], 0x5594131b0da0 /* 8 vars */) = 0
12    +++ exited with 2 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=2, si_utime=0, si_stime=0} ---
10    +++ exited with 2 +++