SampleID	Chromosome	Start_position	End_position	total_cn	A_cn	B_cn	ploidy
Sig_18_tissue_vs_Sig_18_Blood	21	5117136	41464259	2	1	1	2
Sig_18_tissue_vs_Sig_18_Blood	21	41464629	41530140	0	0	0	2
Sig_18_tissue_vs_Sig_18_Blood	21	41530957	46664407	2	1	1	2