func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(false);     int n;     cin >> n;     int w, b;     cin >> w >> b;     vector<int> ve;     for (int i = 0; i < n; i++) {       int x;       cin >> x;       ve.push_back(x);     }     int res = 0;     for (int i = 0, j = n - 1; i <= j; i++, j--) {       if (ve[i] == ve[j] && ve[i] == 2) {         res += (i == j ? 1 : 2) * min(w, b);       } else if (ve[i] == ve[j])         continue;       else if (ve[i] != ve[j]) {         if (ve[i] == 2)           res += (ve[j] == 0 ? w : b);         else if (ve[j] == 2)           res += (ve[i] == 0 ? w : b);         else {           cout << -1 << endl;           return 0;         }       }     }     cout << res << endl;     return 0;   }   