This is cutadapt 2.8 with Python 3.7.4
Command line parameters: -a C{9} -m 20 -o TP20.trim.fastq TP20.fastq
Processing reads on 1 core in single-end mode ...
Finished in 55.66 s (11 us/read; 5.56 M reads/minute).

=== Summary ===

Total reads processed:               5,161,948
Reads with adapters:                   468,973 (9.1%)
Reads that were too short:              18,484 (0.4%)
Reads written (passing filters):     5,143,464 (99.6%)

Total basepairs processed:   306,939,042 bp
Total written (filtered):    300,245,172 bp (97.8%)

=== Adapter 1 ===

Sequence: CCCCCCCCC; Type: regular 3'; Length: 9; Trimmed: 468973 times; Reverse-complemented: 0 times

No. of allowed errors:
0-9 bp: 0

Bases preceding removed adapters:
  A: 54.2%
  C: 0.0%
  G: 16.2%
  T: 29.6%
  none/other: 0.0%

Overview of removed sequences
length	count	expect	max.err	error counts
3	93809	80655.4	0	93809
4	46395	20163.9	0	46395
5	29350	5041.0	0	29350
6	20825	1260.2	0	20825
7	18098	315.1	0	18098
8	14278	78.8	0	14278
9	13569	19.7	0	13569
10	15321	19.7	0	15321
11	17547	19.7	0	17547
12	11029	19.7	0	11029
13	9491	19.7	0	9491
14	9271	19.7	0	9271
15	8474	19.7	0	8474
16	8997	19.7	0	8997
17	8736	19.7	0	8736
18	8560	19.7	0	8560
19	9107	19.7	0	9107
20	8405	19.7	0	8405
21	7457	19.7	0	7457
22	6853	19.7	0	6853
23	6128	19.7	0	6128
24	6273	19.7	0	6273
25	6811	19.7	0	6811
26	6610	19.7	0	6610
27	6335	19.7	0	6335
28	5916	19.7	0	5916
29	5915	19.7	0	5915
30	5349	19.7	0	5349
31	5277	19.7	0	5277
32	5224	19.7	0	5224
33	4925	19.7	0	4925
34	4345	19.7	0	4345
35	3439	19.7	0	3439
36	2682	19.7	0	2682
37	2617	19.7	0	2617
38	2477	19.7	0	2477
39	2735	19.7	0	2735
40	2499	19.7	0	2499
41	2078	19.7	0	2078
42	1957	19.7	0	1957
43	1992	19.7	0	1992
44	1968	19.7	0	1968
45	1798	19.7	0	1798
46	1693	19.7	0	1693
47	1637	19.7	0	1637
48	1363	19.7	0	1363
49	1026	19.7	0	1026
50	861	19.7	0	861
51	560	19.7	0	560
52	337	19.7	0	337
53	232	19.7	0	232
54	143	19.7	0	143
55	81	19.7	0	81
56	43	19.7	0	43
57	21	19.7	0	21
58	24	19.7	0	24
59	17	19.7	0	17
60	13	19.7	0	13