#include <bits/stdc++.h>

using namespace std;

int main() {
    int N;
    cin >> N;
    int cnt = 0;
    string A;
    for (int y = 0; y < N; y++) {
        cin >> A;
        for (char c: A) cnt += c == '.';
    }
    cout << (N % 2 == 0 && cnt % 2 != 0 ? "No" : "Yes") << endl;
    return 0;
}