#! ruby # yukicoder My Practice # author: Leonardone @ NEETSDKASU def gs(); gets.chomp; end def gi(); gets.to_i; end def gss(); gets.chomp.split; end def gis(); gss.map(&:to_i); end def bl(n); n < 2 ? 1 : 1 + bl(n >> 1); end class ST def initialize(n) @N = n @L = (1 << bl(n).succ) @s = [nil] * @L end def put(x0, x1, v) t = [[x0, x1, 0, 1, @N]] while !t.empty? do z0, z1, i, y0, y1 = t.pop if y0 == z0 && y1 == z1 @s[i] = v next end ym = (y0 + y1) >> 1 j = i.succ << 1 if z0 > ym if !@s[i].nil? @s[j] = @s[j - 1] = @s[i] @s[i] = nil end t << [z0, z1, j, ym + 1, y1] elsif z1 <= ym if !@s[i].nil? @s[j] = @s[j - 1] = @s[i] @s[i] = nil end t << [z0, z1, j - 1, y0, ym] else if !@s[i].nil? @s[j] = @s[j - 1] = @s[i] @s[i] = nil end t << [z0, ym, j - 1, y0, ym] t << [ym + 1, z1, j, ym + 1, y1] end end end def get(n) i, y0, y1 = 0, 1, @N while i < @L && @s[i].nil? do ym = (y0 + y1) >> 1 i = i.succ << 1 if n > ym y0 = ym + 1 else y1 = ym i -= 1 end end i < @L ? @s[i] : nil end def gets() r = [] t = [[0, 1, @N]] while !t.empty? i, y0, y1 = t.pop if @s[i].nil? j = i.succ << 1 ym = (y0 + y1) >> 1 t << [j, ym + 1, y1] t << [j - 1, y0, ym] else v = @s[i] r += [v] * (y1 - y0 + 1) end end r end end n = gi a = gis m = {} (1..n).each do |i| k = a[i - 1] if m.key? k m[k] << i else m[k] = [i] end end st = ST.new(n) m.keys.sort.each do |k| mn, mx = m[k].minmax st.put(mn, mx, k) end puts st.gets * " "