verilog, 96 bytes

Result

AC

Duration

787ms

Code [DL]

module c;reg[24]a,b;initial while($fscanf(1<<31,"%h%h",a,b))$write(a%256%17?b>>8:a&15);endmodule

stdin

892 667
253 533
136 963
577 773
649 443
654 539
356 366
292 331
674 724
644 488
744 446
166 779
722 122
593 934
585 552
719 513
157 552
898 896
984 481
499 421
311 131
749 745
577 398
979 988
161 134
938 278
865 193
855 257
617 634
324 448
266 884
876 869

stdout

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

stderr

/volume/CODE:1: warning: Use of SystemVerilog [size] dimension. Use at least -g2005-sv to remove this warning.

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffddfc1e180 /* 9 vars */) = 0
12    execve("/usr/local/bin/iverilog", ["/usr/local/bin/iverilog", "-o", "/tmp/code", "/volume/CODE"], 0x5570767a1d50 /* 9 vars */) = 0
13    execve("/bin/sh", ["sh", "-c", "/usr/local/lib/ivl/ivlpp  -L -F\""...], 0x7ffca3344720 /* 9 vars */) = 0
15    execve("/usr/local/lib/ivl/ivl", ["/usr/local/lib/ivl/ivl", "-C/tmp/ivrlh65c2bef9", "-C/usr/local/lib/ivl/vvp.conf", "--", "-"], 0x559a7d54a290 /* 9 vars */) = 0
14    execve("/usr/local/lib/ivl/ivlpp", ["/usr/local/lib/ivl/ivlpp", "-L", "-F/tmp/ivrlg265c2bef9", "-f/tmp/ivrlg65c2bef9", "-p/tmp/ivrli65c2bef9"], 0x559a7d54a2a8 /* 9 vars */) = 0
14    +++ exited with 0 +++
13    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
15    +++ exited with 0 +++
13    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
13    +++ exited with 0 +++
12    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=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} ---
16    execve("/bin/cat", ["cat", "-"], 0x5570767a1d08 /* 9 vars */) = 0
17    execve("/tmp/code", ["/tmp/code"], 0x5570767a1cf0 /* 9 vars */) = 0
16    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
17    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
18    execve("/bin/rm", ["rm", "/tmp/code"], 0x5570767a1c98 /* 9 vars */) = 0
18    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
11    +++ exited with 0 +++