golfscript, 11 bytes

Result

AC

Duration

568ms

Code [DL]

);{96<48+}%

stdin

AbCDEFgHiJKLMNOPQRSTUVWXyZ

stdout

10111101011111111111111101

stderr

strace

13    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffd31486358 /* 9 vars */) = 0
15    execve("/usr/local/ruby-latest/bin/ruby", ["/usr/local/ruby-latest/bin/ruby", "/root/golfscript.rb", "/volume/CODE"], 0x7fbaa85ec368 /* 9 vars */ <unfinished ...>
14    execve("/bin/cat", ["cat", "-"], 0x7fbaa85ec270 /* 9 vars */ <unfinished ...>
15    <... execve resumed>)             = 0
14    <... execve resumed>)             = 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=5, si_stime=0} ---
13    +++ exited with 0 +++