#define _USE_MATH_DEFINES #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair i_i; typedef pair ll_i; typedef pair d_i; typedef pair ll_ll; typedef pair d_d; struct edge { int u, v, y, m; }; ll MOD = 1000000007; ll _MOD = 1000000009; double EPS = 1e-10; bool dr_kadomatsu(int x, int y, int z) { if (x == y || y == z || z == x) return false; return (x - y) * (z - y) > 0; } ll extgcd(ll a, ll b, ll& x, ll& y) { if (b == 0) { x = (a >= 0) ? 1 : -1; y = 0; return abs(a); } else { ll res = extgcd(b, a % b, y, x); y -= (a / b) * x; return res; } } ll mod_inverse(ll a, ll m) { ll x, y; extgcd(a, m, x, y); return (m + x % m) % m; } ll c(ll n, ll k) { ll res = 1; for (int i = 0; i < k; i++) res = (res * ((n - i) % 1000000007)) % 1000000007; for (int i = 1; i <= k; i++) res = (res * mod_inverse(i, 1000000007)) % 1000000007; return res; } int main() { int N; cin >> N; vector a(101); while (N--) { int A; cin >> A; a[A]++; } ll ans = 0; for (int i = 0; i < N; i++) for (int j = i + 1; j < N; j++) for (int k = j + 1; k < N; k++) ans += (ll)a[i] * a[j] * a[k]; cout << ans % MOD << endl; }