int n;
do {
	n = Input.getInt ("Inserisci la dimensione della matrice");
} while (n<=0);
int [][] m = new int [n][];
for (int i=0; i<n; i++) {
	m[i] = new int [i+1];
}
for (int i=0; i<m.length; i++) {
	for (int j=0; j<m[i].length; j++) {
		m[i][j]=i+1;
	}
}
for (int i=0; i<m.length; i++) {
	for (int j=0; j<m[i].length; j++) {
		System.out.print (m[i][j] + ";");
	}
	System.out.println();
}
