func main()
	var n: int :: cui@inputInt()
	var k: int :: cui@inputInt()
	var p: []int :: #[n]int
	for i(0, n - 1)
		do p[i] :: cui@inputInt()
	end for
	
	var ans: int :: 0
	for b(400, 0, -1)
		var cnt: int :: 0
		for i(0, n - 1)
			if(p[i] >= b)
				do cnt :+ 1
			end if
		end for
		if(cnt <= k)
			do ans :: cnt
		end if
	end for
	do cui@print("\{ans}\n")
end func