using static System.Math;
using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var h = long.Parse(line[0]);
        var w = long.Parse(line[1]);
        line = Console.ReadLine().Trim().Split(' ');
        var ni = long.Parse(line[0]);
        var nj = long.Parse(line[1]);
        line = Console.ReadLine().Trim().Split(' ');
        var zi = long.Parse(line[0]);
        var zj = long.Parse(line[1]);
        var mh = Abs(zi - ni) + Abs(zj - nj);
        Console.WriteLine(mh % 2 == 0 ? "No" : "Yes");
    }
}