fun main(args: Array<String>) {
	var L = readLine()!!.toInt()
	val N = readLine()!!.toInt()
	val W = readLine()!!.split(" ").map(String::toInt)
	val sorted_W = W.sorted()
	var cnt = 0

	for (Wi in sorted_W) {
		if (Wi <= L) {
			L -= Wi
			cnt += 1
		} else {
			break
		}
	}
	println(cnt)
}