namespace AtCoder;

#nullable enable

using System.Numerics;

static class Extensions
{
    public static T[] Repeat<T>(this int time, Func<T> F) => Enumerable.Range(0, time).Select(_ => F()).ToArray();
}

class AtCoder
{
    object? Solve()
    {
        var h = Int();
        var w = Int();
        var n = Int();
        var warps = new ((int, int), (int, int))[n];
        for (var i = 0; i < n; i++)
        {
            var a = Int();
            var b = Int();
            var c = Int();
            var d = Int();
            warps[i] = ((a, b), (c, d));
        }
        var dz = new Dictionary<(int, int), int>();
        var q = new PriorityQueue<(int, int, int), int>();
        dz[(1, 1)] = 0;
        q.Enqueue((1, 1, 0), 0);
        while (q.Count > 0)
        {
            var (u, v, k) = q.Dequeue();
            if ((u, v) == (h, w)) continue;
            if (k > dz[(u, v)]) continue;
            foreach (var ((a, b), (c, d)) in warps)
            {
                var dd = k + Math.Abs(u - a) + Math.Abs(v - b) + 1;
                if (dz.TryGetValue((c, d), out var dn)) if (dn <= dd) continue;
                dz[(c, d)] = dd;
                q.Enqueue((c, d, dd), dd);
            }
            {
                var (a, b) = (h, w);
                var (c, d) = (h, w);
                var dd = k + Math.Abs(u - a) + Math.Abs(v - b);
                if (dz.TryGetValue((c, d), out var dn)) if (dn <= dd) continue;
                dz[(c, d)] = dd;
                q.Enqueue((c, d, dd), dd);
            }
        }
        return dz[(h, w)];
    }

    public static void Main() => new AtCoder().Run();
    public void Run()
    {
        var res = Solve();
        if (res != null)
        {
            if (res is bool yes) res = yes ? "Yes" : "No";
            sw.WriteLine(res);
        }
        sw.Flush();
    }

    string[] input = Array.Empty<string>();
    int iter = 0;
    readonly StreamWriter sw = new(Console.OpenStandardOutput()) { AutoFlush = false };

    #pragma warning disable IDE0051
    string String()
    {
        while (iter >= input.Length) (input, iter) = (Console.ReadLine()!.Split(' '), 0);
        return input[iter++];
    }
    T Input<T>() where T : IParsable<T> => T.Parse(String(), null);
    int Int() => Input<int>();
    void Out(object? x, string? separator = null)
    {
        separator ??= Environment.NewLine;
        if (x is System.Collections.IEnumerable obj and not string)
        {
            var firstLine = true;
            foreach (var item in obj)
            {
                if (!firstLine) sw.Write(separator);
                firstLine = false;
                sw.Write(item);
            }
        }
        else sw.Write(x);
        sw.WriteLine();
    }
    #pragma warning restore IDE0051
}