problem on signal flow graph

3:31

8:06

8:28

5:35

11:28

16:46

13:18

6:46

2:11:13

32:07

3:06

2:06

7:34

13:31

3:13

11:45

3:20

11:14

11:14

11:14

11:14

3:55

کوتاه

1:02:40

کوتاه

7:10

9:34

35:35

14:14

35:35

2:04

4:27

3:14

1:01

2:37

1:48

5:18

44:44

13:12

6:12