# import sys; input = sys.stdin.buffer.readline
# sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

#処理内容
def main():
	H, N = getlist()
	L = [H]
	for i in range(N - 1):
		h = int(input())
		L.append(h)

	L.sort()
	for i in range(N):
		if H == L[-1 - i]:
			anspre = i + 1
			if anspre % 10 == 1:
				ans = str(anspre) + "st"
				print(ans)
			elif anspre % 10 == 2:
				ans = str(anspre) + "nd"
				print(ans)
			elif anspre % 10 == 3:
				ans = str(anspre) + "rd"
				print(ans)
			else:
				ans = str(anspre) + "th"
				print(ans)
			return



if __name__ == '__main__':
	main()