public int leastAmount(int[] left, int[] right) {
		int hit = 0;
		for (int i = 0; i < left.length; i++) {
			for (int j = 0; j < right.length; j++) {
				if (left[i] == right[j]) {
					right[j] = 0;
					hit++;
					break;
				}
			}
		}
		return left.length - hit;
	}