Task37

 public static void task37() {
        int[][] a = new int[10][20];
        Random random = new Random();
        for (int i = 0; i < 10; ++i) {
            for (int j = 0; j < 20; ++j) {
                a[i][j] = random.nextInt(16);
            }
        }
        for (int i = 0; i < 10; ++i) {
            for (int j = 0; j < 20; ++j) {
                System.out.print(a[i][j] + " ");
            }
            System.out.println();
        }
        System.out.println();
        System.out.print("Indexes of rows where number 5 constists 3 or more times: ");
        for (int i = 0; i < 10; i++) {
            int counter = 0;
            for (int j = 0; j < 20; ++j) {
                if (a[i][j] == 5) {
                    counter++;
                }
            }
            if (counter >= 3) {
                System.out.print(i + " ");
            }
        }
    }