16

×

3

5

×

2

2

×

17

13

×

2

4

×

3

2

×

23

22

×

2

13

×

3

2

×

4

5

×

6

3

×

15

12

×

3

3

×

5

3

×

3

2

×

20

4

×

5

3

×

2

2

×

2