матрица

#include <iostream>
#include <fstream>
#include <cmath>
#include <math.h>


using namespace std;

int n;
int a[100];

int main() {

    cin >> n;
    for(int i = 1; i <= n*n; i++){
    	cin >> a[i];
    }
    for(int i = 1; i <= n; i++){
    	for(int j = 1; j <= n; j++){
    		cout << " ---";
    	}
    	cout<<endl;
    	for(int j = 1; j <= n; j++){
    		cout << "| " << a[(i-1)*n+j] << " ";
    	}
    	cout << "|";
    	cout << endl;
    }
    for(int j = 1; j <= n; j++){
    		cout << " ---";
    	}
}