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

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

hl.append(h)
hl = sorted(hl)[::-1]

x = str(hl.index(h) + 1)

if x[-1] == '1':
    print(x + 'st')
elif x[-1] == '2':
    print(x + 'nd')
elif x[-1] == '3':
    print(x + 'rd')
else:
    print(x + 'th')