secmax

#include <iostream>
#include <fstream>
using namespace std;

char x[25005];
int s[25005], d[25005], n;
ifstream f("secmax.in");
ofstream g("secmax.out");

void citeste()
{
	f>>n;
	for (int i=1 ; i<=n ; i++)
		f>>x[i];
}



void solutie()
{
	int i;
	long long nrsec=0;
	s[1]=1;
	for (i=2 ; i<=n ; i++)
		if (x[i-1]<x[i])s[i]=s[i-1]+1;
		else s[i]=1;

	d[n]=1;
	for (i=n-1 ; i>=1 ; i--)
		if (x[i]>x[i+1]) d[i]=d[i+1]+1;
		else d[i]=1;

	for (i=1 ; i<=n ; i++)
		nrsec+=(s[i]-1)*(d[i]-1);
	g<<nrsec<<endl;
	cout<<nrsec<<endl;
}



int main()
{
	citeste();
	//cout<<n;
	solutie();
	return 0;
}