chr1	Start	chr2	End	idx1	idx2	Stranded	circ_id	iscyclic	estimated_cn
chr1	500	chr1	7210	0	1	--	1	True	10.0
chr1	2500	chr1	8060	0	1	++	1	True	10.0
chr1	2100	chr1	9010	2	3	+-	2	True	20.0
chr2	100	chr1	11110	4	3	+-	2	True	20.0
chr1	1500	chr2	2010	2	4	+-	2	True	20.0
