Show:
easy
medium
math
normal
hard
100

5x3

15

100

33x5

165

100

10x7

70

100

5x6

30

100

3(5x3)

45

200

6x6

36

200

38x5

190

200

30x8

240

200

5x7

35

200

7(7x13)

637

300

8x2

16

300

45x8

360

300

35x10

350

300

45x34

1530

300

9(18x20)

3240

400

9x3

27

400

50x8

400

400

83x2

166

400

100x100

10000

400

54(16x23)

19872

500

40x4

160

500

60x18

1080

500

100x3

300

500

45x34

1530

500

85(21x25)

44625