gets
A = gets.split.map(&:to_i)
C = A.group_by{|n| n}.map{|n,a| [n, a.size]}.sort
D = (10 ** 9 + 7)

ans = 0
C.combination(3) do |a|
  ans += a.map{|nc| nc[1]}.inject(&:*)
end
puts ans % D