bdff6120ab2768c33e152b681b88f83c  
	/	/	/	/	/	/	/	/	0	0	1	1	1	2	2	3	3	9	A	C	I	I	L	N	O	R	b	c	d	d	d	d	i	m	n	n	o	p	s	t	u