puts [*?a..?z]
#?aで文字リテラル化している
#参考https://docs.ruby-lang.org/ja/latest/doc/spec=2fliteral.html
=begin
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
=end
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