#include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int dp[10000];     for (int i = 0; i < n; i++) cin >> dp[i];     dp[1] = min(dp[1], dp[0]);     for (int i = 2; i < n; i++) dp[i] = min(dp[i], max(dp[i - 1], dp[i - 2]));     cout << dp[n - 1] << endl;     return 0;   }   