by@n4o847
AC
1157ms
void main(){import std.stdio;string s;while((s=readln())!is null)write(s[s[1]-s[2]?4:2]);}
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55615728116361261974596985987323
11 execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffcfae258f0 /* 6 vars */) = 0 12 execve("/usr/bin/realpath", ["realpath", "/volume/CODE"], 0x56235315bc00 /* 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"], 0x56235315bc20 /* 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"], 0x56235315bc18 /* 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/cc9E2ukY.s"], 0x23165e0 /* 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=7, si_stime=2} --- 16 execve("/bin/as", ["as", "--64", "-o", "/tmp/ccHNf9gJ.o", "/tmp/cc9E2ukY.s"], 0x23165e0 /* 11 vars */) = -1 ENOENT (No such file or directory) 16 execve("/usr/local/sbin/as", ["as", "--64", "-o", "/tmp/ccHNf9gJ.o", "/tmp/cc9E2ukY.s"], 0x23165e0 /* 11 vars */) = -1 ENOENT (No such file or directory) 16 execve("/usr/local/bin/as", ["as", "--64", "-o", "/tmp/ccHNf9gJ.o", "/tmp/cc9E2ukY.s"], 0x23165e0 /* 11 vars */) = -1 ENOENT (No such file or directory) 16 execve("/usr/sbin/as", ["as", "--64", "-o", "/tmp/ccHNf9gJ.o", "/tmp/cc9E2ukY.s"], 0x23165e0 /* 11 vars */) = -1 ENOENT (No such file or directory) 16 execve("/usr/bin/as", ["as", "--64", "-o", "/tmp/ccHNf9gJ.o", "/tmp/cc9E2ukY.s"], 0x23165e0 /* 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/"..., ...], 0x2316c60 /* 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/"..., ...], 0x7ffcdbfa8600 /* 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=4, 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} --- 19 execve("/bin/cat", ["cat", "-"], 0x56235315bbe8 /* 6 vars */ <unfinished ...> 20 execve("/tmp/code", ["/tmp/code"], 0x56235315bbd0 /* 6 vars */ <unfinished ...> 19 <... execve resumed> ) = 0 20 <... 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"], 0x56235315bbd0 /* 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 +++