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

rank = sorted(Hs).index(-H) + 1

th = 'th'

if rank % 10 == 1:
    th = 'st'
elif rank % 10 == 2:
    th = 'nd'
elif rank % 10 == 3:
    th = 'rd'

print(str(rank) + th)