import java.util.*

fun main(args: Array<String>) {
    val sc = Scanner(System.`in`)
    val h = sc.nextInt()
    val n = sc.nextInt()

    val c = 1 + (1 until n).map { sc.nextInt() }
            .filter { h < it }
            .count()

    val suf = when (c) {
        1 -> "st"
        2 -> "nd"
        3 -> "rd"
        else -> "th"
    }

    println("$c$suf")
}