half life equation

18:02

2:45

16:01

4:44

3:02

18:38

4:54

6:58

10:30

3:28

11:38

3:39

6:27

12:20

9:29

8:10

3:34

16:43

4:00

9:30

9:12

17:25

28:05

16:04

11:13

15:03

48:46

7:22

6:05

19:15

2:48

9:23

4:46

23:28

3:53

36:27

7:23

12:28

2:45

10:20

10:21

3:13

3:00

6:47

7:38

7:28

3:31

18:45

6:00

2:12

3:02

3:33

9:50

25:10

2:04

4:20

4:30

3:44

4:01

4:03