class A
  def initialize
    n = gets.chomp.to_i
    a = gets.chomp.split(' ').map(&:to_i)

    count = 0

    cache = Hash.new(false)

    [*(1..100)].combination(3) do |list|
      count += list.map{|i| cache[i] || cache[i] = a.count(i)}.inject(:*)
    end

    puts count % (10 ** 9 + 7)
  end
end

A.new