#include <iostream>
#include <algorithm>

using namespace std;

const int NMax = 105;
int v[NMax * NMax];
int mat[NMax][NMax];

int main()
{
    int n;
    cin >> n;
    for(int i = 1; i <= n * n; i++){
        cin >> v[i];
    }
    sort(v + 1,v + n * n + 1);
    int cont = n * n;
    for(int i = 1; i <= n; i++){
        mat[i][i] = v[cont];
        cont--;
    }
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            if(mat[i][j] == 0){
                mat[i][j] = v[cont];
                cont--;
            }
        }
    }
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            cout << mat[i][j] << " ";
        }
        cout << endl;
    }
    return 0;
}