make, 168 bytes

Result

WA

Duration

731ms

Code [DL]

1=$(STDIN)
f=$(if $1,$(word 2,$(filter $(word 2,$1) $(word 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

828 229
766 216
955 119
959 223
684 397
886 677
966 764
499 857
476 694
225 523
268 882
382 285
779 172
328 883
718 876
652 757
977 749
277 226
211 718
695 987
884 757
426 262
523 937
623 929
979 778
711 168
172 447
822 225
856 588
542 423
255 551
552 826

stdout

26523869628278877719829971425455

stderr

make: 26523869628278877719829971425455: No such file or directory
make: *** [/volume/CODE:3: a] Error 127

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffe1e2f3000 /* 7 vars */) = 0
12    execve("/bin/cat", ["cat", "-"], 0x565509030028 /* 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    execve("/usr/bin/ag_launcher", ["/usr/bin/ag_launcher", "-i", "/usr/bin/make", "-f", "/volume/CODE"], 0x5655090300a8 /* 7 vars */) = 0
13    execve("/usr/bin/make", ["/usr/bin/make", "-f", "/volume/CODE"], 0x55e394b75da0 /* 8 vars */) = 0
13    +++ exited with 2 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=2, si_utime=0, si_stime=0} ---
11    +++ exited with 2 +++