func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int a, b, c, x, y, z;     cin >> a >> b >> c;     cin >> x >> y >> z;     a -= x;     b -= y;     c -= z;     if (a >= 0) a /= 2;     if (b >= 0) b /= 2;     if (c >= 0) c /= 2;     if (a + b + c >= 0)       cout <<  Yes  << endl;     else       cout <<  No  << endl;     return 0;   }   