#include #include // url #define rep(i,a,b) for(int i=a;i=a;i--) #define all(x) (x).begin(),(x).end() #define pb(x) push_back(x); templatebool chmax(T &a, const T &b) { if (abool chmin(T &a, const T &b) { if (b; // using mint = static_modint<1000000007>; const ll mod=998244353; //const ll mod=1e9+7; int dx[4]={1,0,-1,0}; int dy[4]={0,1,0,-1}; const string zton="0123456789"; const string atoz="abcdefghijklmnopqrstuvwxyz"; const string ATOZ="ABCDEFGHIJKLMNOPQRSTUVWXYZ"; const ll inf=(1ll<<60); // const int inf=(1<<30); lld dist(lld x1,lld x2,lld y1,lld y2){ lld res=(x1-x2)*(x1-x2)+(y1-y2)*(y1-y2); res=sqrt(abs(res)); return res; } lld arg(lld x,lld y){ const lld eps=1e-8; lld res=0; if(abs(x)+abs(y)<=eps)return 0.0; else if(abs(x)<=eps){ if(y>=0.0)return (M_PI/2); else return (M_PI/2+M_PI); } else if(abs(y)<=eps){ if(x>=0.0)return 0.0; else return M_PI; } res=atan2(abs(y),abs(x)); if(x<=0&&y>=0)res=(M_PI-res); else if(x<=0&&y<=0)res+=(M_PI); else if(x>=0&&y<=0)res=(M_PI*2-res); return res; } ll gcd(ll a,ll b){ if(a==0||b==0)return a+b; ll r; r=a%b; if(r==0){ return b; } else{ return gcd(b,r); } } typedef pair P; int main(void){ ios::sync_with_stdio(false); cin.tie(nullptr); int N;cin>>N; P p[N]; rep(i,0,N){ cin>>p[i].first; p[i].second=i; p[i].first--; } sort(p,p+N); // reverse(p,p+N); fenwick_tree cnt(N),sum(N); mint power2[N+1]; power2[0]=1; rep(i,1,N+1){ power2[i]=power2[i-1]*2; } mint ans=0; rep(i,0,N){ int idx=p[i].second; mint a=cnt.sum(idx,N); mint b=sum.sum(idx,N); a*=power2[N-1]; b*=power2[idx]; mint ad=a-b; ans+=ad; cnt.add(idx,1); sum.add(idx,power2[N-1-idx]); // cout << idx << endl; // cout << power2[N-1+idx].val() << endl; // cout << ad.val() << endl; // cout << a.val() << " " << b.val() << endl; } cout<