Fill m the arid so that every row. every column, and every 3*3 box i the
contains the digits i through 9
	4 8	6			8
			7 2 4	1 9	2
			8 9	1	
		1	3 7		
	1		4 5	7	
5			9	6 3	
8					
-8,auto,9gag