how to find square in 2 sec

23:38

5:12

5:12

1:04

3:57

3:57

4:07

2:06

کوتاه

10:36

1:45

5:02

5:48

5:48

5:48

10:23

2:31

2:03

4:53

3:24

4:04

3:58

6:02

11:52

13:54

36:08

1:55

11:06

20:49

3:17

8:02

2:22

21:58

3:16

6:50

6:38

5:30

10:24

کوتاه

18:28