# -*- coding: utf-8 -*-

H,N = map(int, input().split())
h = [H]
for i in range(N-1):
    h.append(int(input()))

h.sort(reverse=True)
order = h.index(H) + 1
r = order % 10

if r==1:
    print(str(order)+'st')
elif r==2:
    print(str(order)+'nd')
elif r==3:
    print(str(order)+'rd')
else:
    print(str(order)+'th')