#!/usr/bin/env perl

use strict;
use warnings;

my $n = <>; chomp $n;
my %h;
my @v;
my $s = <>; chomp $s;
for my $x (split / /,$s) {
  if (!exists$h{$x}) {
    push @v, $x;
  }
  $h{$x}++;
}
my $count = 0;
for (my $i = 0; $i < @v; $i++) {
  for (my $j = 0; $j < $i; $j++) {
    for (my $k = 0; $k < $j; $k++) {
      $count += $h{$v[$i]} * $h{$v[$j]} * $h{$v[$k]};
      $count %= 1000000007;
    }
  }
}

print "$count\n";