gnuplot, 75 bytes

Result

AC

Duration

780ms

Code [DL]

set print "-"
do for[i=1:256:8]{v=ARG1[i:i+6]
print v%100%11?0+v[5:5]:v%10}

stdin

894 262
382 449
299 191
925 274
463 432
127 337
769 828
342 289
121 221
141 846
411 134
321 125
782 987
783 311
347 771
233 325
427 571
115 922
966 669
917 172
197 121
655 559
611 615
718 813
968 887
755 719
266 112
281 819
755 887
177 649
332 311
338 338

stdout

2
4
9
2
4
3
8
2
2
8
1
1
9
3
7
3
5
9
6
1
1
5
1
8
8
5
6
8
5
7
3
3

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffd89144e80 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x5654797cccf8 /* 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", "894 262\n382 449\n299 191\n925 274\n"...], 0x56547a341290 /* 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=1} ---
10    +++ exited with 0 +++