n=gets.to_i
xs=gets.split.map{|e| e.to_i}
(1..(n*2-4)).each{|i|
	n.times{|p1|
		q=i-p1
		break if p1>=q
		next if q>=n
		if xs[p1]>xs[q]
			t=xs[p1]
			xs[p1]=xs[q]
			xs[q]=t
		end
	}
}
puts xs*" "