from bisect import bisect_left

h, n = map(int, input().split())
hs = [int(input()) for _ in range(n - 1)]

hs.sort()

i = bisect_left(hs, h)

ans = n - i

end = [None, "st", "nd", "rd"] + ["th"] * (n - 3)

print(ans, end[ans], sep="")