import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[][] a = new int[n][n];
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < n; j++) {
				a[i][j] = sc.nextInt();
			}
		}
		sc.close();

		boolean[] ek = new boolean[n];
		Arrays.fill(ek, true);
		for (int m = 0; m < n; m++) {
			for (int e = 0; e < n; e++) {
				if (a[m][e] == a[e][m] && a[m][e] == m) {
				} else {
					ek[e] = false;
				}
			}
		}
		for (int e = 0; e < n; e++) {
			if (ek[e]) {
				boolean flga = true;
				for (int m = 0; m < n; m++) {
					boolean flg = false;
					for (int i = 0; i < n; i++) {
						if (a[m][i] == a[i][m] && a[m][i] == e) {
							flg = true;
							break;
						}
					}
					if (!flg) {
						flga = false;
						break;
					}
				}
				if (flga) {
					System.out.println("Yes");
					return;
				}
			}
		}
		System.out.println("No");
	}
}