using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    static string[] SList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => ReadLine()).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = NN;
        var s = SList(n);
        if (n % 2 == 1)
        {
            WriteLine("Yes");
            return;
        }
        var count = 0;
        foreach (var si in s) for (var i = 0; i < n; ++i) if (si[i] == '#') ++count;
        WriteLine(count % 2 == 0 ? "Yes" : "No");
    }
}