func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     long long a[n];     for (long long i = 0; i <= n - 1; i++) cin >> a[i];     for (long long i = 0; i <= n - 1; i++)       if ((a[i] % 2)) a[i] += 1;     for (long long i = 0; i <= n - 1; i++)       if (!(a[i] % 2)) a[i] -= 1;     for (long long i = 0; i <= n - 1; i++) cout << a[i] <<    ;     return 0;   }   