bash-busybox, 231 bytes

Result

AC

Duration

943ms

Code [DL]

sed -E 's/11 ./11 1/g'|sed -E 's/22 ./22 2/g'|sed -E 's/33 ./33 3/g'|sed -E 's/44 ./44 4/g'|sed -E 's/55 ./55 5/g'|sed -E 's/66 ./66 6/g'|sed -E 's/77 ./77 7/g'|sed -E 's/88 ./88 8/g'|sed -E 's/99 ./99 9/g'|sed -E 's/.* (.).*/\1/g'

stdin

588 422
455 554
533 635
815 213
354 468
943 988
322 981
839 498
976 145
388 815
114 885
933 446
715 152
726 825
397 997
533 992
269 192
288 889
981 181
933 372
167 769
265 776
312 185
497 772
786 884
474 258
396 891
612 224
581 865
188 986
775 754
923 355

stdout

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

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7fff6741dca0 /* 9 vars */) = 0
11    execve("/usr/bin/realpath", ["realpath", "/volume/CODE"], 0x557500a1dd18 /* 9 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("/bin/cp", ["cp", "-f", "/volume/CODE", "/opt/jails/bash-busybox/code.bas"...], 0x557500a1dd68 /* 9 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} ---
13    execve("/bin/cat", ["cat", "-"], 0x557501d560d8 /* 9 vars */) = 0
13    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=13, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
14    execve("/usr/sbin/jk_chrootlaunch", ["jk_chrootlaunch", "-j", "/opt/jails/bash-busybox", "-x", "/bin/bash", "/code.bash"], 0x557501d561c0 /* 9 vars */) = 0
14    execve("/bin/bash", ["/bin/bash", "/code.bash"], 0x7ffda7e25070 /* 9 vars */) = 0
23    execve("/bin/sed", ["sed", "-E", "s/99 ./99 9/g"], 0x55686ff96880 /* 10 vars */ <unfinished ...>
22    execve("/bin/sed", ["sed", "-E", "s/88 ./88 8/g"], 0x55686ff96880 /* 10 vars */ <unfinished ...>
23    <... execve resumed>)             = 0
22    <... execve resumed>)             = 0
21    execve("/bin/sed", ["sed", "-E", "s/77 ./77 7/g"], 0x55686ff96880 /* 10 vars */) = 0
17    execve("/bin/sed", ["sed", "-E", "s/33 ./33 3/g"], 0x55686ff96880 /* 10 vars */ <unfinished ...>
20    execve("/bin/sed", ["sed", "-E", "s/66 ./66 6/g"], 0x55686ff96880 /* 10 vars */ <unfinished ...>
17    <... execve resumed>)             = 0
20    <... execve resumed>)             = 0
16    execve("/bin/sed", ["sed", "-E", "s/22 ./22 2/g"], 0x55686ff96880 /* 10 vars */) = 0
19    execve("/bin/sed", ["sed", "-E", "s/55 ./55 5/g"], 0x55686ff96880 /* 10 vars */) = 0
18    execve("/bin/sed", ["sed", "-E", "s/44 ./44 4/g"], 0x55686ff96880 /* 10 vars */ <unfinished ...>
24    execve("/bin/sed", ["sed", "-E", "s/.* (.).*/\\1/g"], 0x55686ff96880 /* 10 vars */ <unfinished ...>
18    <... execve resumed>)             = 0
24    <... execve resumed>)             = 0
15    execve("/bin/sed", ["sed", "-E", "s/11 ./11 1/g"], 0x55686ff96880 /* 10 vars */) = 0
15    +++ exited with 0 +++
16    +++ exited with 0 +++
17    +++ exited with 0 +++
18    +++ exited with 0 +++
19    +++ exited with 0 +++
20    +++ exited with 0 +++
21    +++ exited with 0 +++
22    +++ exited with 0 +++
23    +++ exited with 0 +++
24    +++ exited with 0 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
14    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
25    execve("/bin/rm", ["rm", "/opt/jails/bash-busybox/code.bas"...], 0x557500a1dcc8 /* 9 vars */) = 0
25    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
10    +++ exited with 0 +++