safe period calculation

20:29

7:01

5:20

4:10

1:26

3:05

2:24

47:46

31:45

12:51

14:27

13:36

26:09

3:53

3:04

1:33

1:22

6:52

45:42

8:52

4:39

12:27

9:50

11:34

8:32

12:48

14:15

11:33

17:50

3:55

6:18

کوتاه

43:07

7:40

3:31

6:02

9:21

3:08

14:09

کوتاه