// editor4
import java.util.*;
public class array{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        
        if(n<=1)
        {
            System.out.println("Invalid input");
            return;
        }
        int t = n*n;
        
        int[] numbers = new int[t];
        
        
        for(int i=0;i<t;i++)
            if(!sc.hasNextInt()) {
                System.out.println("Invalid input");
                return;
            }
            numbers[i] = sc.nextInt();
        
        if(n*n != numbers.length)
        {
            System.out.println("Invalid input");
            return;
        }
        
        int[][] newArr = new int[n][n];
        
        int c = 0;
        for(int i=0;i<n;i++)
        {
            for(int j=0;j<n;j++)
            {
                newArr[i][j] = numbers[c++];
                System.out.print(newArr[i][j]+" ");
            }
            System.out.println();
        }
    }
}