#include <bits/stdc++.h> using namespace std; #include <atcoder/all> using namespace atcoder; using ll=long long; using Graph=vector<vector<int>>; #define INF 1000000000000000000 #define MOD 1000000007 #define MAX 500 class BIT{ int n; vector<ll> a; public: BIT(int n_):n(n_){ a.resize(n+1,0); } void add(int i,ll x){ while(i<=n){ a[i]+=x; a[i]%=MOD; i+=i&(-i); } } ll sum(int i){ ll ret=0; while(i>0){ ret+=a[i]; i-=i&(-i); } return ret; } ll sum(int l,int r){ return (sum(r)+MOD-sum(l-1))%MOD; } }; int main(){ int N; cin>>N; vector<pair<int,int>> A(N); for(int i=0;i<N;i++){ cin>>A[i].first; A[i].second=i; } sort(A.begin(),A.end()); vector<ll> p2(N+1,1); for(int i=0;i<N;i++){ p2[i+1]=2*p2[i]%MOD; } ll ans=0; BIT left_tree1(N); BIT right_tree1(N); int i=0; while(i<N){ int a=A[i].first; vector<int> index; while(i<N&&A[i].first==a){ index.push_back(A[i].second); i++; } for(int k:index){ ans+=left_tree1.sum(k+1)*right_tree1.sum(k+1,N)%MOD; ans%=MOD; } for(int k:index){ left_tree1.add(k+1,p2[k]); right_tree1.add(k+1,p2[N-(k+1)]); } } reverse(A.begin(),A.end()); BIT left_tree2(N); BIT right_tree2(N); i=0; while(i<N){ int a=A[i].first; vector<int> index; while(i<N&&A[i].first==a){ index.push_back(A[i].second); i++; } for(int k:index){ ans+=left_tree2.sum(k+1)*right_tree2.sum(k+1,N)%MOD; ans%=MOD; } for(int k:index){ left_tree2.add(k+1,p2[k]); right_tree2.add(k+1,p2[N-(k+1)]); } } cout<<ans<<'\n'; }