#include <bits/stdc++.h> using namespace std; #define all(c) ((c).begin()), ((c).end()) #define dump(c) cerr << "> " << #c << " = " << (c) << endl; #define iter(c) __typeof((c).begin()) #define tr(i, c) for (iter(c) i = (c).begin(); i != (c).end(); i++) #define REP(i, a, b) for (int i = a; i < (int)(b); i++) #define rep(i, n) REP(i, 0, n) #define mp make_pair #define fst first #define snd second #define pb push_back #define debug( fmt, ... ) \ fprintf( stderr, \ fmt "\n", \ ##__VA_ARGS__ \ ) typedef unsigned int uint; typedef long long ll; typedef unsigned long long ull; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<vll> vvll; typedef vector<vi> vvi; typedef vector<double> vd; typedef vector<vd> vvd; typedef vector<string> vs; typedef pair<int, int> pii; typedef pair<ll, ll> pll; const int INF = 1 << 29; const double EPS = 1e-10; double zero(double d) { return d < EPS ? 0.0 : d; } template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; } template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; } #define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() ); template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p) { return os << '(' << p.first << ',' << p.second << ')'; } template<typename T> ostream &operator<<(ostream &os, const vector<T> &a) { os << '['; rep(i, a.size()) os << (i ? " " : "") << a[i]; return os << ']'; } string toString(int i) { stringstream ss; ss << i; return ss.str(); } const int MOD = 1000000007; // a^k ll fpow(ll a, ll k, int M) { ll res = 1ll; ll x = a; while (k != 0) { if ((k & 1) == 1) res = (res * x) % M; x = (x * x) % M; k >>= 1; } return res; } struct prepare { prepare() { cout.setf(ios::fixed, ios::floatfield); cout.precision(8); ios_base::sync_with_stdio(false); } } _prepare; int main() { int N; cin >> N; map<int, int> A; rep(i, N) { int a; cin >> a; A[a]++; } if(A.size() < 3) { cout << 0 << endl; return 0; } ll ans = 1; rep(i, 3) { ans *= (A.size()-i); } ans /= 6; ans %= MOD; tr(it, A) { ans *= it->second; ans %= MOD; } cout << ans << endl; return 0; }