import collections
N = int(input())
lsA = list(map(int,input().split()))
mod = 10**9+7
cnter = collections.Counter(lsA)
keys = list(cnter.keys())
keys.sort()
M = len(keys)
if M < 3:
    print(0)
    exit()
cnt = 0
for i in range(M-2):
    for j in range(i+1,M-1):
        for k in range(j+1,M):
            cnt += cnter[keys[i]]*cnter[keys[j]]*cnter[keys[k]]
            cnt %= mod
print(cnt)