func_code_string: #include <bits/stdc++.h>   using namespace std;   const int mod = 1e9 + 7;   const double EPS = 1e-9;   const int INF = 1 << 29;   int main() {     int x1, y1, x2, y2;     cin >> x1 >> y1 >> x2 >> y2;     int x, y;     cin >> x >> y;     int dx = abs(x1 - x2), dy = abs(y1 - y2);     if (dx % x || dy % y) {       puts( NO );       return 0;     }     int t = dx / x - dy / y;     if (t & 1) {       puts( NO );     } else {       puts( YES );     }     return 0;   }   