bt	S	1
bt	S	4
bt	S	9
bt	S	16
bt	A	1
bt	A	4
bt	A	9
bt	A	16
bt	A	25
bt	A	36
bt	A	49
bt	A	64
bt	A	81
bt	A	100
bt	A	121
bt	B	1
bt	B	4
bt	B	9
bt	B	16
bt	B	25
bt	B	36
bt	B	49
bt	B	64
bt	B	81
bt	B	100
bt	B	121
bt	C	1
bt	C	4
bt	C	9
bt	C	16
bt	C	25
bt	C	36
bt	C	49
bt	C	64
bt	C	81
bt	C	100
bt	C	121