2/7	2/14	2/21	2/28
S1	S1	B	S2
S1	S1	P	S2
S1	S1	B	S2
S1	S1	P	S2

3/7	3/14	3/21	3/28
S1	S1	P	S3
S1	S1	B	S3
S1	S1	P	S3
S1	S1	B	S3