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

Hs.append(H)
Hs.sort(key=lambda x: - x)

rnk = Hs.index(H) + 1
lValue = ''

if rnk % 10 == 1:
    lValue = 'st'
elif rnk % 10 == 2:
    lValue = 'nd'
elif rnk % 10 == 3:
    lValue = 'rd'
else:
    lValue = 'th'
print(str(rnk) + lValue)