frojasg

public class Matrix {

	public static void main(String [] args){
		int n = Integer.parseInt(args[0]);
		int[][] A = new int[n][n];
		int count = 0;
		for(int i = 0; i< n; i++) {
			for(int j = i, z=0; j>=0 && z <= i; j--, z++){
				if(i%2==1) {
					A[z][j]=count;