H, N = map(int, input().split())
others = [int(input()) for _ in range(N-1)]
heights = others + [H]
heights.sort(reverse=True)

rank = heights.index(H) + 1

if 11 <= (rank % 100) <= 13:
    suffix = "th"
else:
    last_digit = rank % 10
    if last_digit == 1:
        suffix = "st"
    elif last_digit == 2:
        suffix = "nd"
    elif last_digit == 3:
        suffix = "rd"
    else:
        suffix = "th"

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