fun main(args: Array<String>) {
    p14()
}

fun p14() {
    val l = readLine()!!.toInt()
    val n = readLine()!!.toInt()
    val wList = readLine()!!.split(' ').map { it.toInt() }.sorted()

    var answer = 0
    var currL = 0L

    for (w in wList) {
        if (currL + w > l) break
        answer++
        currL += w
    }

    println(answer)
}