Show:
x9
x8
x7
x6
x4
100

9x9

81

100

8x2

16


100

7x7

49

100

6x6

36

100

4x2

8

200

9x2

18

200

8x8

64

200

7x5

35

200

6x5

30

200

4x4

16

300

9x6

54

300

8x5

40

300

7x6

42

300

6x8

48

300

4x8

32

400

9x10

90

400

8x3

24

400

7x9

63

400

6x11

66

400

4x11

44

500

9x3

27

500

8x10

80

500

7x4

28

500

6x12

72

500

4x9

36