public static void cwiczenie_03() {
		Random r = new Random();
		int n = (r.nextInt(5) + 5);
		char tab[][] = new char[n][n];
		int b = 0;
		for (int i = 0; i < tab.length; i++) {
			for (int j = 0; j < tab[i].length; j++) {
				tab[i][j] = (char) (Math.random() * 2);

				if (tab[i][j] == 1) {
					tab[i][j] = 'l';
				}
				if (tab[i][j] == 0) {
					tab[i][j] = 'a';
				}

				System.out.print(tab[i][j] + " ");
			}
			 System.out.println();

		}

		for (int i = 0; i < tab.length; i++) {
			for (int j = 0; j < tab[i].length; j++) {
				if(j < tab[i].length-1 && j < tab[i].length-2) {
					if (tab[i][j] == 'a' && tab[i][j+1] == 'l' && tab[i][j+2] == 'a') {
						System.out.println(tab[i][j] + " " + tab[i][j+1] + " " + tab[i][j+2]);
						b++;
					}
				}
			}
		}
		System.out.println(""+b);
	}