# -*- coding:utf-8 -*-
import collections
import math

if __name__ == "__main__":
	n = input()
	A = map(int,raw_input().split())
	num = len(set(A))
	cnt = collections.Counter(A)
	temp = 10 **9 
	if num < 3:
		print 0
	else:
		ans = math.factorial(num) / (math.factorial(3) * math.factorial(num-3))
		for element in cnt.most_common():
			ans *= element[1]
	print ans % temp +7