D31N			A31N			A20S
B	3		C	0		B	14
B	17		C	5		B	16
B	27		C	14		B	23
B	37		C	27		B	31
B	47		C	37		B	39
B	56		C	47		B	51
B	65		C	57		B	58
			C	69		B	70
			C	79		B	80
			C	88