#!/usr/bin/ruby
# -*- coding: utf-8 -*-
def calc(d)
   ( (-1 + (1+4*d)**0.5) / 2.0 ).to_i
end

def correct(d)
   t = (d**0.5).to_i
   while t*t + t <= d
     t += 1
   end
   t - 1
end

N = 10**5
cnt = 0
(10**9).downto(0) { |k|
  d = k*k + k - 1
  next unless (1 <= d && d <= 10**18)
  if calc(d) != correct(d)
    puts d
    cnt += 1
    break if cnt == N
  end
}