how do i change page numbers in word for different sections

2:49

6:08

4:59

4:34

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8:00

1:08

6:47

00:55

8:59

11:26

4:15

3:33

4:37

7:05

2:07

5:54

2:44

5:30

00:57

7:21

8:53

1:44

3:59

6:29

3:41

6:22

7:57

3:53

5:17

2:13

5:04

6:17

6:51

1:57

8:04

10:17

6:09

2:05

00:46

4:23

4:03

4:19

6:07

1:27

1:49

11:28

3:16

6:44

7:32

2:06

1:09

00:55

6:56

1:52

6:51

3:06

4:47

3:33

1:41