simplification dear sir

19:19

21:51

15:19

23:07

1:11:36

14:07

16:47

23:32

10:11

18:13

8:09

20:19

1:15:10

33:02

1:57:09

15:46

11:17

1:57:46

16:50

1:57:58

1:08:47

9:02

7:37

10:08

13:48

14:16

14:45

11:21

54:15

12:27

13:35

10:09

19:35

5:52

2:56:05

56:45

11:21

55:35

10:55

1:29:29

6:24

8:22

59:15

1:09:59

10:34

16:41

1:36:15

1:36:51

32:41

1:14:30

21:53

10:51:40

57:50

13:14

5:38:13

56:33

4:07

6:19:05

29:47

1:31