func_code_string: #include <bits/stdc++.h>   int main() {     int n, m, p, q, a, b;     scanf( %d %d %d %d , &n, &m, &p, &q);     scanf( %d %d , &a, &b);     int u = q - m, v = p - n;     if (u < 0) u = -u;     if (v < 0) v = -v;     if ((u) % b == 0 && (v) % a == 0) {       int c = u / b - v / a;       if (c < 0) c = -c;       if (c % 2 == 0)         printf( YES n );       else         printf( NO n );     } else       printf( NO n );   }   