#include <bits/stdc++.h>

using i64 = long long;

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    
    int N;
    std::cin >> N;
    
    std::vector a(N, std::vector<int>(N));
    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++) {
            std::cin >> a[i][j];
        }
    }
    
    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++) {
            for (int k = 0; k < N; k++) {
                if (a[i][a[j][k]] != a[a[i][j]][k]) {
                    std::cout << "No\n";
                    return 0;
                }
            }
        }
    }
    
    int e = -1;
    for (int i = 0; i < N; i++) {
        bool ok = true;
        for (int j = 0; j < N; j++) {
            if (a[i][j] != j || a[j][i] != j) {
                ok = false;
            }
        }
        if (ok) {
            e = i;
        }
    }
    if (e == -1) {
        std::cout << "No\n";
        return 0;
    }
    
    for (int i = 0; i < N; i++) {
        int cnt = 0;
        for (int j = 0; j < N; j++) {
            if (a[i][j] == e && a[j][i] == e) {
                cnt += 1;
            }
        }
        if (cnt != 1) {
            std::cout << "No\n";
            return 0;
        }
    }
    
    std::cout << "Yes\n";
    
    return 0;
}