#include <bits/stdc++.h>
#include <unistd.h>
#include <sys/time.h>
#include <stdlib.h>
 
using namespace std;
 
typedef long long ll;
typedef pair<ll,ll> P;
typedef pair<P, ll> T;
 
long long int INF = 2e18;
const ll fact_table = 1200008;
double Pi = 3.1415926535897932384626;

priority_queue <ll> pql;
priority_queue <P> pqp;
priority_queue <P> bag;
//big priority queue
priority_queue <ll,vector<ll>,greater<ll> > pqls;
priority_queue <P,vector<P>,greater<P> > pqps;
//small priority queue
//top pop
 
ll dx[8]={1,0,-1,0,1,1,-1,-1};
ll dy[8]={0,1,0,-1,1,-1,-1,1};
char dir[] = "DRUL";
//↓,→,↑,←

#define endl "\n"
#ifdef ENJAPMA
    #undef endl
#endif
#define p(x) cout<<x<<endl;
#define el cout<<endl;
#define pe(x) cout<<x<<" ";
#define ps(x) cout<<fixed<<setprecision(25)<<x<<endl;
#define pu(x) cout<<(x);
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define CLEAR(a) a = decltype(a)(); 
#define pc(x) cout << x << ",";
 
// const ll mod = 998244353ll;
const ll mod = 1000000007ll;
  
ll mypow(ll number1,ll number2, ll mod){
    if(number2 == 0){
        return 1ll;
    }else{
        ll number3 = mypow(number1,number2 / 2, mod);
        number3 *= number3;
        number3 %= mod;
        if(number2%2==1){
            number3 *= number1;
            number3 %= mod;
        }
        return number3;
    }
}
void YES(bool condition){
    if(condition){
        p("YES");
    }else{
        p("NO");
    }
    return;
}
void Yes(bool condition){
    if(condition){
        p("Yes");
    }else{
        p("No");
    }
    return;
}
 
/*
ll fact[fact_table + 5],rfact[fact_table + 5]; 
 
void c3_init(){
    fact[0] = rfact[0] = 1;
    for(ll i=1; i<=fact_table; i++){
        fact[i] = (fact[i-1]*i) % mod;
    }
    rfact[fact_table] = mypow(fact[fact_table],mod - 2, mod);
    for(ll i=fact_table; i>=1; i--){
       rfact[i-1] = rfact[i] * i;
       rfact[i-1] %= mod;
    }
    return;}
ll c3(ll n,ll r){
    return (((fact[n] * rfact[r]) % mod ) * rfact[n-r]) % mod;}
*/

bool multicase = false;

ll n,m,num,a,b,c,d,e,h,q;
ll w, k;
int x[100005];
int r[100005], l[100005];
bool flagmax[100005], flagmin[100005];

int main(){
    cin >> n;
    for(int i=0;i<n;i++){
        cin >> x[i];
    }
    for(int i=0;i+4<n;i++){
        if(x[i] < x[i+1] && x[i+1] < x[i+2] && x[i+2] < x[i+3] && x[i+3] < x[i+4]){
            r[i] = x[i], l[i] = x[i+4];
            flagmax[i] = true;
        }
        if(x[i] > x[i+1] && x[i+1] > x[i+2] && x[i+2] > x[i+3] && x[i+3] > x[i+4]){
            r[i] = x[i], l[i] = x[i+4];
            flagmin[i] = true;
        }
    }

    int ans = 0;
    for(int i=0;i<n;i++){
        int maxi = x[i], mini = x[i];
        for(int j=i+1;j<n;j++){

            maxi = max(maxi, x[j]);
            mini = min(mini, x[j]);

            if(mini < x[i] && x[i] < maxi)break;

            if(maxi == x[j] && mini == x[i]){
                if(flagmax[j]){
                    ans += 5;
                    maxi = r[j];
                    j += 4;
                    continue;
                }
                ans ++;
            }
            if(maxi == x[i] && mini == x[j]){
                if(flagmin[j]){
                    mini = r[j];
                    ans += 5;
                    j += 4;
                    continue;
                }
                ans ++;
            }
        }
    }
    p(ans);
    return 0;
}