l, n = map(int, input().split())

length = [int(input()) for _ in range(n-1)]

ans = length + [l]
ans.sort(reverse=True)
ret = ans.index(l) + 1
r = ret % 10

if r == 1:
    print(f'{r}st')
elif r == 2:
    print(f'{r}nd')
elif r == 3:
    print(f'{r}rd')
else:
    print(f'{r}th')