#include <bits/stdc++.h>
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2")
// #define ATC
#define LL long long
#define eb emplace_back
using namespace std;

#ifdef ATC
#include <atcoder/all>
using namespace atcoder;
#endif

typedef pair<int, int> pii;
#define fi first
#define se second
#define MP make_pair

const int maxn = 2005;
int n, a[maxn << 1];
char s[maxn][maxn];
bool vis[maxn];
vector<pii> G[maxn], R[maxn];

inline bool slv (int x, int y, int z) {
	a[1] = z;
	queue<int> q;
	q.push(1);
	while (!q.empty()) {
		int u = q.front(); q.pop();
		if (vis[u]) continue;
		vis[u] = 1;
		for (auto &[v, w] : G[u]) 
			if (!vis[v]) 
				a[v] = a[u] ^ x ^ w, q.push(v);
		for (auto &[v, w] : R[u]) 
			if (!vis[v]) 
				a[v] = a[u] ^ y ^ w, q.push(v);
		
	}
	for (int i = 1; i <= n; i++) {
		bool fl = (s[i][1] == '1') ^ a[n - i + 1] ^ a[n + 1];
		for (int j = 2; j <= i; j++) if (((s[i][j] == '1') ^ a[n - i + j] ^ a[n + j]) != fl) return 0;
	}
	return 1;
}

int main() {
	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin >> n;
	for (int i = 1; i <= n; i++) cin >> s[i] + 1;
	for (int i = 1; i < n; i++) {
		int v = s[n - 1][i] == '1';
		G[i + 1].eb(MP(i + n, v));
		G[i + n].eb(MP(i + 1, v));
	}
	for (int i = 1; i <= n; i++) {
		int v = s[n][i] == '1';
		R[i].eb(MP(i + n, v));
		R[i + n].eb(MP(i, v));
	}
	bool fl = 0;
	for (int x = 0; x < 2 && !fl; x++)
		for (int y = 0; y < 2 && !fl; y++)
			for (int z = 0; z < 2 && !fl; z++) {
				memset(a, 0, 2 * n + 1 << 2);
				fl |= slv(x, y, z);
			}
	puts(fl ? "Yes" : "No");
}
// I love WHQ!