func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   int a[102];   int main() {     cin >> n;     for (int i = 0; i < n; ++i) cin >> a[i];     puts((n % 2 == 1) && (a[0] % 2 == 1) && (a[n - 1] % 2 == 1) ?  Yes  :  No );     return 0;   }   