class ForTest {
	public static void main(String[] args) {
   		for (int x = 0; x < 3; x = x + 1) {
			System.out.println(x);
			int y = (10 + 20 + 30) * x;
			System.out.println(y);
			System.out.println();
    		}
	}
}

explanation

result