fish, 29 bytes

Result

AC

Duration

878ms

Code [DL]

7d*2d*>:?!;$:v
      ^-1$n)i<

stdin

abCDeFGHIJklMNOpQRSTuvwXyZ

stdout

00110111110011101111000101

stderr

strace

10    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7fff4c5767c0 /* 7 vars */) = 0
11    execve("/bin/cat", ["cat", "-"], 0x55dfd98d0d68 /* 7 vars */) = 0
12    execve("/usr/bin/python3", ["/usr/bin/python3", "/root/fish.py", "/volume/CODE"], 0x55dfd9d07028 /* 7 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    +++ exited with 0 +++
10    --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12, si_uid=0, si_status=0, si_utime=6, si_stime=2} ---
10    +++ exited with 0 +++