public static void searchTR() {
		long cur = 0;
		for (int i = 0; i < tr.length; i++) {
			cur = tr[i][0];
			for (int j = 1; j < tr[i].length; j++) 
				if(tr[i][j]==0)
					 searchRH(i, j-1, tr[i][0], i+"");
		}
	}