m = {1:"st", 2:"nd", 3:"rd"}
h, n = map(int, input().split())
H = [h]
for _ in range(n - 1):
    H.append(int(input()))
ans = sorted(H)[::-1].index(h) + 1
print(f"{ans}{m[ans] if ans % 10 in m else 'th'}")