#include <cstdio>
#include <iostream>
using namespace std;
const int maxn = 1005;
int G[maxn][maxn];
int main () {
    freopen("judge.in", "r", stdin);
    freopen("judge.out", "w", stdout);
    int n;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) { 
            cin >> G[i][j]; 
        }
    }
    bool flag = true;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            if (i == j && G[i][j] == 1) {
                flag = false;
            }
        }
    }
    if (flag) {
        cout << "Yes" << endl; 
    } else {
        cout << "No" << endl;
    }
    return 0;
}