题解 | #字符串分隔#

str = STDIN.gets.strip
t = str.size % 8 == 0 ? 0 : 8 - (str.size % 8)
str = str + ('0' * t)
(str.size / 8).times do |i|
    p = i * 8
    puts str[p..(p+7)]
end