D31N			A31N			A20S
B	−1		C	9		B	6
B	6		C	21		B	14
B	13		C	31		B	27
B	24		C	44		B	39
B	32		C	51		B	46
B	40		C	58		B	55
B	48		C	68		B	62
B	56		C	75		B	71
B	64		C	82		B	87
			C	89
			C	98