#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); i++)
#define per(i,n) for (int i = (n)-1; i>=0; i--)
using namespace std;
using ll = long long;
using P = pair<int,int>;

vector<int> jp;
int getjp(int i){
	if(jp[i]==i) return i;
	else return jp[i]=getjp(jp[i]);
}

int main(){
	int n;
	cin>>n;
	vector<int> a(n);
	rep(i, n) cin>>a[i];

	jp = vector<int>(n+2);
	ll tot=0;
	per(l, n){
		for(int i=1; i<=n+1; i++) jp[i]=i;
		for(int r=l; r<n; r++){
			jp[a[r]]=getjp(a[r]+1);
			tot+=getjp(1);
		}
	}

	cout<<tot<<endl;
	return 0;
}