#include <bits/stdc++.h>   using namespace std;   int L01P08(vector<int>& arr, int n) {     bool check = true;     if (arr[0] - 15 > 0) {       return 15;     } else {       for (int i = 0; i < n - 1; i++) {         for (int j = 1; j < n; j++) {           if (arr[i] + 15 < arr[i + 1]) {             return arr[i] + 15;             break;           }         }       }       if (arr[arr.size() - 1] + 15 < 90) {         return arr[arr.size() - 1] + 15;       } else {         return 90;       }     }   }   int main() {     int n, val;     cin >> n;     vector<int> arr;     for (int i = 0; i < n; i++) {       cin >> val;       arr.push_back(val);     }     int res = L01P08(arr, n);     cout << res;     return 0;   }   