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