private int[] DisplayLCS(int[][] b, int[] x, int[] y) {
		int[] lcs = new int[b[b.length - 1][b[0].length - 1]];
		int k = lcs.length - 1;
		for (int i = b.length - 1, j = b[0].length - 1; i >= 1 && j >= 1;) {
			if (x[i - 1] == y[j - 1]) {
				lcs[k--] = x[i - 1];
				i--;
				j--;
			} else if (b[i][j - 1] > b[i - 1][j]) {
				j--;
			} else {
				i--;
			}
		}
		return lcs;
	}