#include <bits/stdc++.h>   using namespace std;   int main() {     int n, shet = 0;     long long int ans = 0;     cin >> n;     ans = n;     int* mas = new int[n];     for (int i = 0; i < n; i++) {       cin >> mas[i];     }     for (int i = 1; i < n; i++) {       if (mas[i] == mas[i - 1]) {         shet++;         ans += shet;       } else {         shet = 0;       }     }     cout << ans << endl;     return 0;   }   