h, n = map(int, input().split())
others = [int(input()) for _ in range(n-1)]
all_heights = others + [h]
all_heights.sort(reverse=True)
rank = all_heights.index(h) + 1

last_digit = rank % 10
suffix = 'th'
if last_digit == 1:
    suffix = 'st'
elif last_digit == 2:
    suffix = 'nd'
elif last_digit == 3:
    suffix = 'rd'

print(f"{rank}{suffix}")