@SQ	SN:z	LN:13
@CO	TAGCTTAGCAGGT ref
@CO	 AGCTTAGCAGG
@CO	 AGCT***CAGG
@CO	 **CTTAGCA**
@CO	 01234567890  qual
@CO	
@CO	Note ending on D gives reported quality 0 ('!')
s1	0	z	2	0	11M	*	0	0	AGCTTAGCAGG	01234567890
s2	0	z	2	0	4M3D4M	*	0	0	AGCTCAGG	01237890
s3	0	z	2	0	2D7M2D	*	0	0	CTTAGCA	2345678
