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

l = [h]
for i in range(n-1):
    l.append(int(input()))

l = sorted(l)[::-1]

a = l.index(h)

if str(a+1)[-1] == '1':
    print(str(a+1) + 'st')

elif str(a+1)[-1] == '2':
    print(str(a+1) + 'nd')

elif str(a+1)[-1] == '3':
    print(str(a+1) + 'rd')

else:
    print(str(a+1) + 'th')