private static void findC(int[][] points, int start, int end) {
		int firstQ = 0, secondQ = 0, thirdQ = 0, fourthQ = 0;
		for (int i = start; i <= end; i++) {
			boolean posX, posY;
			posX = numChangesX[i];
			posY = numChangesY[i];

			if (posX && posY)
				firstQ++;
			else if (!posX && posY)
				secondQ++;
			else if (!posX && !posY)
				thirdQ++;
			else
				fourthQ++;

		}
		System.out.println(String.format("%d %d %d %d", firstQ, secondQ, thirdQ, fourthQ));
	}