gnuplot, 60 bytes

Result

AC

Duration

1065ms

Code [DL]

se pr"-"
do for[i=2:256:8]{v=ARG1[i:i+3]
pr v%11?v[3:]:v%10}

stdin

466 387
177 545
587 776
946 947
454 746
223 194
997 675
799 338
878 628
911 177
146 641
399 995
313 196
894 491
398 885
477 743
625 665
535 335
753 756
656 567
371 717
198 775
799 595
882 355
799 494
688 883
346 688
446 417
986 886
584 571
371 144
699 115

stdout

6
7
 7
 9
 7
 1
 6
9
 6
1
 6
9
 1
 4
 8
7
 6
 3
 7
 5
 7
 7
9
 3
9
8
 6
 4
 8
 5
 1
9

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffd4870d830 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55f2962e0cf8 /* 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/gnuplot", ["/usr/bin/gnuplot", "-c", "/volume/CODE", "466 387\n177 545\n587 776\n946 947\n"...], 0x55f297931290 /* 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 +++