public static void task4() {
        int[][] matrixMinus = new int[2][2];
        for (int i = 0; i < 2; i++) {
            for (int j = 0; j < 2; j++) {
                matrixMinus[i][j] = (int)(0 - Math.random() * 100);
                System.out.print("[" + i + "][" + j + "]" + matrixMinus[i][j] + "\t");
            }
            System.out.println();
        }
    }