func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int a[3];     int x[3];     int last = 0;     cin >> a[0] >> a[1] >> a[2];     cin >> x[0] >> x[1] >> x[2];     for (int i = 0; i < 3; ++i) {       int t = a[i] - x[i];       if (t > 0) t /= 2;       last += t;     }     if (last < 0)       cout <<  No n ;     else       cout <<  Yes n ;     return 0;   }   