#include <bits/stdc++.h>
using namespace std;

int main() {
	int n; cin >> n;
	vector<string> a(n);
	for(int i=0; i<n; ++i) cin >> a[i];
	
	int black = 0;
	for(int i=0; i<n; ++i) {
		for(int j=0; j<n; ++j) {
			if(a[i][j] == '#') ++black;
		}
	}
	if(n%2 == 0 && black%2 == 1) cout << "No\n";
	else cout << "Yes\n";
}