H, N = map(int, input().split())
res = 1
for _ in range(N - 1):
    h = int(input())
    if h > H:
        res += 1
if res == 1:
    print('1st')
elif res == 2:
    print('2nd')
elif res == 3:
    print('3rd')
else:
    print(res + 'th')