#include <bits/stdc++.h>
using namespace std;
#ifdef local
#include <debug.hpp>
#else
#define debug(...)
#endif
#define rep(i, n) for (int i = 0; i < n; i++)
template <class T> istream& operator>>(istream& I, vector<T>& V) {for (T& X : V) I >> X; return I;}
template <class T> inline bool chmax(T& a, T b) {if (a < b) {a = b; return true;} return false;}
template <class T> inline bool chmin(T& a, T b) {if (a > b) {a = b; return true;} return false;}
vector<int> di = {-1, 1, 0, 0}, dj = {0, 0, -1, 1}; int inf = 1e9; long INF = 1e18;

int main() {
    int n;
    cin >> n;
    vector<string> s(n);
    cin >> s;

    if (n & 1) {
        cout << "Yes\n";
        return 0;
    }

    int b = 0, w = 0;
    rep(i, n) rep(j, n) if (s[i][j] == '#') b++;
    w = n * n - b;
    cout << (b & 1 ? "No" : "Yes") << endl;
    return 0;
}