chr1	100	159	0
chr1	200	260	0
chr1	500	750	0
--------------------
chr11	679	687	0
--------------------
chr22	100	200	0
chr22	300	400	0
--------------------
chr3	450	700	0
--------------------
chr4	100	300	0
--------------------
chr7	350	600	0
--------------------
chr9	100	125	0
--------------------