python3, 43 bytes

Result

AC

Duration

490ms

Code [DL]

for x in input():print(~x.encode()[0]>>5&1)

stdin

ABcDeFGHIjkLMnopQRSTUVWXyZ

stdout

1
1
0
1
0
1
1
1
1
0
0
1
1
0
0
0
1
1
1
1
1
1
1
1
0
1

stderr

strace

13    execve("/bin/sh", ["/bin/sh", "/root/script", "/volume/CODE"], 0x7ffca5fb0378 /* 7 vars */) = 0
14    execve("/bin/cat", ["cat", "-"], 0x7fc7bf7d0238 /* 7 vars */) = 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    execve("/usr/bin/python3", ["/usr/bin/python3", "/volume/CODE"], 0x7fc7bf7d0250 /* 7 vars */) = 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=1, si_stime=0} ---
13    +++ exited with 0 +++