import java.util.Scanner;
public class dvodimpolja2 {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);

        System.out.print("Unesi parametar n kvadratne matrice: ");

        int n = input.nextInt();
        int niz[][] = new int[n][n];

        System.out.println("unesi clanove kvadratne matrice ");
        for (int i = 0; i < niz.length; i++) {
            for (int j = 0; j < niz[i].length; j++) {
                System.out.print("x[" +i+ "," +j +"]"+ "-->");
                niz[i][j] = input.nextInt();
            }
        }
        for (int i = 0; i < niz.length; i++) {
            System.out.println();
            for (int j = 0; j < niz[i].length; j++) {
                System.out.print(niz[i][j] + " ");
            }
        }
        System.out.println();
        System.out.println("clanovi na glavnoj dijagonali su zamijenjeni 0");
        for (int i = 0; i < niz.length; i++) {
            for (int j = 0; j < niz[i].length; j++) {

                if (i != j)
                    System.out.print(niz[i][j] + " ");
                else
                    System.out.print("0"+" ");
            }


            System.out.println();
        }
    }
}