input = gets.split(" ")
num = input[1].to_i
list = []
a = input[0].to_i
list << a

(num - 1).times do
    other = gets.to_i
    list << other
end
list.sort!
list.reverse!
b = (list.index(a) + 1).to_s[-1]

	case b.to_i
	when 1
		puts "#{list.index(a) + 1}st"
	when 2
		puts "#{list.index(a) + 1}nd"
	when 3
		puts "#{list.index(a) + 1}rd"
	else
		puts "#{list.index(a) + 1}th"
	end