python combine pdfs into one file

6:50

6:07

7:50

9:24

6:29

6:30

4:22

52:20

3:49

10:52

8:13

1:38

1:41

7:34

7:51

17:00

10:03

6:12

5:14

3:05

00:48

8:24

10:35

2:07

5:08

4:32

2:01

13:14

4:34

7:02

8:02

9:17

9:27

2:11

2:48

00:44

5:20

4:01

2:31

10:11

00:44

17:15

1:03

4:23

4:34

1:04

50:23

6:33

3:53

4:40

3:49

2:01

4:34

5:20

4:48

1:34

1:09

6:53

00:37

1:59