##fileformat=VCFv4.3
##contig=<ID=1,assembly=b37,length=249250621>
##reference=file:///lustre/scratch105/projects/g1k/ref/main_project/human_g1k_v37.fasta
##INFO=<ID=ILEN,Number=A,Type=Integer,Description="number">
#CHROM	POS	ID	REF	ALT	QUAL	FILTER	INFO
1	100	.	C	CTT	.	.	ILEN=1
1	101	.	C	CT	.	.	ILEN=2
