apl, 60 bytes

Result

AC

Duration

772ms

Code [DL]

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

stdin

422 223
646 145
772 785
248 799
128 224
355 663
196 966
388 648
896 694
284 416
751 213
941 642
199 227
943 349
855 576
271 162
688 823
639 668
566 964
343 227
149 995
173 544
644 649
933 413
692 226
776 185
567 679
595 452
293 996
625 339
177 779
783 892

stdout

26282668641123518662934326759373

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"], 0x7ffc09a78c20 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x556a1b48bcf8 /* 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", "--", "422 223\n646 145\n772 785\n248 799\n"...], 0x556a1c80c2a0 /* 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=0, si_stime=0} ---
10    +++ exited with 0 +++