M	S	Purchase Quantity
M	S	1	2	3	4	5
m1	S1	1300	1300	1300	1300	1300
	S2	473	500	500	0	404
	S3	0	0	0	0	0
m2	S1	1200	1200	1200	1200	1200
	S2	400	400	400	400	400
	S3	0	260	300	0	216
m3	S1	2000	2000	2000	2000	2000
	S2	466	500	500	500	500
	S3	0	0	0	0	0