H, N = map(int, input().split())
h = [int(input()) for i in range(N-1)]
h.append(H)
h.sort()
h.reverse()
rank = (h.index(H) + 1)
ranking = str(rank)

if rank % 10 == 1:
    print(ranking + 'st')
elif rank % 10 == 2:
    print(ranking + 'nd')
elif rank % 10 == 3:
    print(ranking + 'rd')
else:
    print(ranking + 'th')