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