#include<bits/stdc++.h>
using namespace std;
#define int long long
#define itn long long
#define gt getchar
inline int read()
{
    int x = 0,f = 1;
    char ch = gt();
    while(!isdigit(ch))
    {
        if(ch == '-') f = 0;
        ch = gt();
    }
    while(isdigit(ch))
    {
        x = (x<<3)+(x<<1)+(ch^'0');
        ch = gt();
    }
    return f?x:-x;
}
constexpr int maxn = 2e5+10;
int a[maxn];
int pos[maxn];
signed main()
{
    int n = read();
    for(int i = 1;i<=n;++i)
    {
        a[i] = read();
        pos[a[i]] = i;
    }
    int l = pos[0],r = pos[0],ans = 0;
    for(int i = 1;i<=n;++i)
    {
        ans += l*(n-r+1);
        if(i<n)
        {
            l = min(l,pos[i]);
            r = max(r,pos[i]);
        }
    }
    printf("%lld",ans);
    return 0;
}
/*
3
0 2 1
10
9 6 8 5 1 0 3 2 4 7
15
12 9 4 6 5 2 0 1 7 13 10 14 8 11 3
*/