exercise 4d

21:05

8:45

17:26

6:43

8:58

19:51

9:46

21:41

13:39

8:47

5:33

25:19

39:25

6:42

33:03

18:16

14:27

27:24

25:15

11:42

10:22

21:57

31:01

8:42

24:02

44:33

18:00

36:46

9:04

28:19

20:14

20:10

47:04

27:22

4:41

33:20

44:30

9:47

33:46

8:02

1:09:30

45:34

42:08

22:47

13:20

42:40

7:12

7:56

6:28

2:42

23:32

8:28

5:10

3:24

5:37

4:53

1:07:13

6:39

16:11

16:36