@HD	VN:1.4	SO:coordinate
@SQ	SN:xx	LN:20	AS:?	SP:?	UR:?	M5:bbf4de6d8497a119dda6e074521643dc
@RG	ID:x1	SM:x1
@RG	ID:x2	SM:x2	LB:x	PG:foo:bar	PI:1111
@PG	ID:emacs	PN:emacs	VN:23.1.1
@CO	also test
@CO	other	headers
a1	16	xx	1	1	10M	*	0	0	AAAAAAAAAA	**********	RG:Z:x1
b1	16	xx	1	1	10M	*	0	0	AAAAAAAAAA	**********	RG:Z:x2
c1	16	xx	1	1	10M	*	0	0	AAAAAAAAAA	**********
a2	16	xx	11	1	10M	*	0	0	TTTTTTTTTT	**********	RG:Z:x1
b2	16	xx	11	1	10M	*	0	0	TTTTTTTTTT	**********	RG:Z:x2
c2	16	xx	11	1	10M	*	0	0	TTTTTTTTTT	**********
