import Nanoquery.IO

def longer(a, b)
	try
		b[len(a)-1]
		return false
	catch
		return true
	end
end

print "enter filename: "
$f = new(File, input())

longest = ""
lines = ""
for x in $f.read()
	if longer(x, longest)
		lines = x
		longest = x
	else if !longer(longest, x)
		lines += "\n" + x
	end
end

println lines