UMI	median_counts_pre	times_observed_pre	total_counts_pre	median_counts_post	times_observed_post	total_counts_post
ACCGGTTTA	74	1	74	74	1	74
ACTGGTTTC	48	1	48	49	1	49
AGCGGTTAC	1	1	1	1	1	1
CCAGGTTCT	1	1	1	1	1	1
TCTGGTTTC	1	1	1	0	0	0
