//https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8 より
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};
    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };
    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };
    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };
    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}

//

use std::cmp::*;

fn calc(p: &[usize]) -> usize {
    if p.len() <= 1 {
        return 0;
    }
    let m = p.len() / 2;
    let (f, t) = p.split_at(m);
    let mut ans = calc(f) + calc(t);
    let mut left = vec![];
    let mut left_min = vec![];
    for &f in f.iter().rev() {
        if let Some(&(x, y)) = left.last() {
            left.push((max(x, f), min(y, f)));
        } else {
            left.push((f, f));
        }
        left_min.push(left.last().unwrap().1);
    }
    let mut right = vec![];
    let mut right_min = vec![];
    for &f in t.iter() {
        if let Some(&(x, y)) = right.last() {
            right.push((max(x, f), min(y, f)));
        } else {
            right.push((f, f));
        }
        right_min.push(right.last().unwrap().1);
    }
    left.dedup();
    right.dedup();
    left_min.dedup();
    right_min.dedup();
    while left.len()> 0 && right.len() > 0 {
        let &(a, b) = left.last().unwrap();
        let &(c, d) = right.last().unwrap();
        if a > c {
            let mut b = b;
            while let Some(&(x, y)) = left.last() {
                if x != a {
                    break;
                } else {
                    b = std::cmp::max(b, y);
                    left.pop();
                }
            }
            if b > d {
                while let Some(&u) = right_min.last() {
                    if u == d {
                        break;
                    } else {
                        right_min.pop();
                    }
                }
                ans += right_min.len() - right_min.binary_search_by(|a| b.cmp(&a)).unwrap_err();
            }
        } else {
            let mut d = d;
            while let Some(&(x, y)) = right.last() {
                if x != c {
                    break;
                } else {
                    d = std::cmp::max(d, y);
                    right.pop();
                }
            }
            if b < d {
                while let Some(&u) = left_min.last() {
                    if u == b {
                        break;
                    } else {
                        left_min.pop();
                    }
                }
                ans += left_min.len() - left_min.binary_search_by(|a| d.cmp(&a)).unwrap_err();
            }
        }
    }
    ans
}

fn run() {
    input! {
        n: usize,
        p: [usize; n],
    }
    let ans = calc(&p);
    println!("{}", ans);
}

fn main() {
    run();
}