#include<bits/stdc++.h>
using namespace std;
using Int = signed;
#include <boost/multiprecision/cpp_int.hpp>
using ll = boost::multiprecision::cpp_int;


template<typename T> 
struct BIT{
  Int n;
  vector<T> bit;
  BIT(Int n_,T d):n(n_),bit(n_+1,d){}
  
  T sum(Int i){
    T s=bit[0];
    for(Int x=i;x>0;x-=(x&-x))
      s+=bit[x];
    return s;
  }
  void add(Int i,T a){
    if(i==0) return;
    for(Int x=i;x<=n;x+=(x&-x))
      bit[x]+=a;
  }
};

//INSERT ABOVE HERE
signed main(){
  Int n;
  cin>>n;
  vector<Int> p(n);
  for(Int i=0;i<n;i++) cin>>p[i];
  ll ans=1,x=1;
  BIT<Int> bit(n+1,0);
  for(Int i=1;i<=n;i++){
    ans+=bit.sum(p[n-i])*x;
    bit.add(p[n-i],1);
    x*=i;
  }
  cout<<ans<<endl;
  return 0;
}