func_code_string: #include <bits/stdc++.h>   int main() {     int x, y;     scanf( %d%d , &x, &y);     int r2 = x * x + y * y;     int r = floor(sqrt(static_cast<double>(r2)));     if (r * r < r2 && (r + 1) * (r + 1) > r2 &&         (r % 2 == 1 && x * y > 0 || r % 2 == 0 && x * y < 0)) {       printf( white n );     } else {       printf( black n );     }     return 0;   }   