#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ld = long double;
using mint = modint998244353;

int main() {
  int h, w; cin >> h >> w;
  int ni, nj; cin >> ni >> nj;
  int zi, zj; cin >> zi >> zj;
  ll dist = abs(ni - zi) + abs(nj - zj);
  cout << (dist % 2 ? "Yes" : "No") << endl;
  return 0;
}