H, N = map(int, input().split())
Hi = [int(input()) for _ in range(N-1)]

rank = 1
for x in Hi:
    if x > H:
        rank += 1

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