apl, 58 bytes

Result

AC

Duration

845ms

Code [DL]

t←32 8ρ⊃⎕ARG[6]
(3×1+t[;5]=t[;6])⌷¨⊂[2]t
)OFF

stdin

166 771
915 229
311 813
898 998
173 336
738 183
151 562
538 339
788 883
232 231
886 437
579 197
748 291
281 117
942 283
723 554
483 833
141 192
425 257
262 193
789 828
332 239
277 725
677 112
966 665
572 971
499 433
522 415
629 443
326 929
255 549
388 986

stdout

72193813826981253152927162924658

stderr

Executable /usr/bin/APs/APserver not found.
This could means that 'apl' was not installed ('make install') or that it
was started in a non-standard way. The expected location of APserver is 
either the same directory as the binary 'apl' or the subdirectory 'APs' of
that directory (the directory should also be in $PATH).
Svar_DB not connected in Svar_DB::is_registered_id()

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffde83043e0 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55b2b2d1fcf8 /* 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/apl", ["/usr/bin/apl", "-s", "-f", "/volume/CODE", "--", "166 771\n915 229\n311 813\n898 998\n"...], 0x55b2b33102a0 /* 7 vars */) = 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=1, si_stime=0} ---
10    +++ exited with 0 +++