d-gdc, 78 bytes

Result

AC

Duration

1141ms

Code [DL]

import std.stdio;void main(){for(char[]s;readln(s);)putchar=s[s[1]-s[2]?4:1];}

stdin

599 726
388 836
945 211
133 326
541 188
238 387
362 225
885 483
374 452
577 114
422 224
841 349
311 873
133 232
651 813
837 432
983 446
115 137
624 727
915 119
736 339
879 687
952 227
682 446
217 718
699 993
697 571
499 596
688 553
169 653
469 969
112 128

stdout

98231324472313844171362479598691

stderr

strace

11    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffc16de9c10 /* 6 vars */) = 0
12    execve("/usr/bin/realpath", ["realpath", "/volume/CODE"], 0x55b3ed7d4c00 /* 6 vars */) = 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} ---
13    execve("/bin/ln", ["ln", "-sf", "/volume/CODE", "/tmp/code.d"], 0x55b3ed7d4c20 /* 6 vars */) = 0
13    +++ exited with 0 +++
11    --- 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/bin/gdc", ["gdc", "/tmp/code.d", "-o", "/tmp/code"], 0x55b3ed7d4c18 /* 6 vars */) = 0
15    execve("/usr/lib/gcc/x86_64-linux-gnu/8/cc1d", ["/usr/lib/gcc/x86_64-linux-gnu/8/"..., "/tmp/code.d", "-quiet", "-dumpbase", "code.d", "-mtune=generic", "-march=x86-64", "-auxbase", "code", "-imultiarch", "x86_64-linux-gnu", "-o", "/tmp/cc9g9ZGf.s"], 0x19685e0 /* 11 vars */) = 0
15    +++ exited with 0 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=15, si_uid=0, si_status=0, si_utime=5, si_stime=2} ---
16    execve("/bin/as", ["as", "--64", "-o", "/tmp/ccBIoThl.o", "/tmp/cc9g9ZGf.s"], 0x19685e0 /* 11 vars */) = -1 ENOENT (No such file or directory)
16    execve("/usr/local/sbin/as", ["as", "--64", "-o", "/tmp/ccBIoThl.o", "/tmp/cc9g9ZGf.s"], 0x19685e0 /* 11 vars */) = -1 ENOENT (No such file or directory)
16    execve("/usr/local/bin/as", ["as", "--64", "-o", "/tmp/ccBIoThl.o", "/tmp/cc9g9ZGf.s"], 0x19685e0 /* 11 vars */) = -1 ENOENT (No such file or directory)
16    execve("/usr/sbin/as", ["as", "--64", "-o", "/tmp/ccBIoThl.o", "/tmp/cc9g9ZGf.s"], 0x19685e0 /* 11 vars */) = -1 ENOENT (No such file or directory)
16    execve("/usr/bin/as", ["as", "--64", "-o", "/tmp/ccBIoThl.o", "/tmp/cc9g9ZGf.s"], 0x19685e0 /* 11 vars */) = 0
16    +++ exited with 0 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=16, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
17    execve("/usr/lib/gcc/x86_64-linux-gnu/8/collect2", ["/usr/lib/gcc/x86_64-linux-gnu/8/"..., "-plugin", "/usr/lib/gcc/x86_64-linux-gnu/8/"..., "-plugin-opt=/usr/lib/gcc/x86_64-"..., "-plugin-opt=-fresolution=/tmp/cc"..., "-plugin-opt=-pass-through=-lgcc_"..., "-plugin-opt=-pass-through=-lgcc", "-plugin-opt=-pass-through=-lm", "-plugin-opt=-pass-through=-lpthr"..., "-plugin-opt=-pass-through=-ldl", "-plugin-opt=-pass-through=-lc", "-plugin-opt=-pass-through=-lgcc_"..., "-plugin-opt=-pass-through=-lgcc", "--build-id", "--eh-frame-hdr", "-m", "elf_x86_64", "--hash-style=gnu", "--as-needed", "-dynamic-linker", "/lib64/ld-linux-x86-64.so.2", "-pie", "-z", "now", "-z", "relro", "-o", "/tmp/code", "/usr/lib/gcc/x86_64-linux-gnu/8/"..., "/usr/lib/gcc/x86_64-linux-gnu/8/"..., "/usr/lib/gcc/x86_64-linux-gnu/8/"..., "-L/usr/lib/gcc/x86_64-linux-gnu/"..., ...], 0x1968c60 /* 13 vars */) = 0
18    execve("/usr/bin/ld", ["/usr/bin/ld", "-plugin", "/usr/lib/gcc/x86_64-linux-gnu/8/"..., "-plugin-opt=/usr/lib/gcc/x86_64-"..., "-plugin-opt=-fresolution=/tmp/cc"..., "-plugin-opt=-pass-through=-lgcc_"..., "-plugin-opt=-pass-through=-lgcc", "-plugin-opt=-pass-through=-lm", "-plugin-opt=-pass-through=-lpthr"..., "-plugin-opt=-pass-through=-ldl", "-plugin-opt=-pass-through=-lc", "-plugin-opt=-pass-through=-lgcc_"..., "-plugin-opt=-pass-through=-lgcc", "--build-id", "--eh-frame-hdr", "-m", "elf_x86_64", "--hash-style=gnu", "--as-needed", "-dynamic-linker", "/lib64/ld-linux-x86-64.so.2", "-pie", "-z", "now", "-z", "relro", "-o", "/tmp/code", "/usr/lib/gcc/x86_64-linux-gnu/8/"..., "/usr/lib/gcc/x86_64-linux-gnu/8/"..., "/usr/lib/gcc/x86_64-linux-gnu/8/"..., "-L/usr/lib/gcc/x86_64-linux-gnu/"..., ...], 0x7ffe8eaafb50 /* 13 vars */) = 0
18    +++ exited with 0 +++
17    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=18, si_uid=0, si_status=0, si_utime=3, si_stime=5} ---
17    +++ exited with 0 +++
14    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=17, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
14    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=14, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
20    execve("/tmp/code", ["/tmp/code"], 0x55b3ed7d4bd0 /* 6 vars */ <unfinished ...>
19    execve("/bin/cat", ["cat", "-"], 0x55b3ed7d4be8 /* 6 vars */ <unfinished ...>
20    <... execve resumed> )            = 0
19    <... execve resumed> )            = 0
19    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
20    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
21    execve("/bin/rm", ["rm", "/tmp/code.d", "/tmp/code"], 0x55b3ed7d4bd0 /* 6 vars */) = 0
21    +++ exited with 0 +++
11    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
11    +++ exited with 0 +++