MOD = 10**9+7
N = int(input())
A = list(map(int,input().split()))
C = {}
for i in range(N):
    C[A[i]] = C.get(A[i],0)+1
ans = 0
C = list(C.items())
K = len(C)
for i in range(K-2):
    for j in range(i+1,K-1):
        for k in range(j+1,K):
            ans = (ans+C[i][1]*C[j][1]*C[k][1])%MOD
print(ans)