#!/usr/bin/env python

hn = [int(x) for x in input().split()]
hlist = [hn[0]]
for i in range(hn[1]-1):
    hlist.append(int(input()))

hlist.sort(reverse=True)
ind = hlist.index(hn[0]) + 1

if ind == 1:
    print('1st')
elif ind == 2:
    print('2nd')
elif ind == 3:
    print('3rd')
else:
    print('{0}th'.format(ind))