#!/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 str(ind)[-1] == '1':
    print('{0}st'.format(ind))
elif str(ind)[-1] == '2':
    print('{0}nd'.format(ind))
elif str(ind)[-1] == '3':
    print('{0}rd'.format(ind))
else:
    print('{0}th'.format(ind))