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第二回 ドワンゴからの挑戦状 予選
n = gets.chomp.to_i
puts n / 25
n = gets.chomp.to_i
k = gets.chomp.split(" ").map(&:to_i)
res = []
(n - 2).times do |i|
res << [k[i], k[i + 1]].min
end
res.unshift(k.first)
res.push(k.last)
puts res.join(" ")
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