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1. 64
2. 42
3. 21
4. 32
5. 72
6. 24
7. 48
8. 56
9. 16
10. 30
11. 70
12. 15

4x4

10+10+10

21x2

5x3

8x2

10+54

6x5

6x7

42: 2

8x6

35x2

7x3

23x2

7x8

12+12

8x7

100-52

30x2+6x2

5+5+5

6x4

4x8

9x8

50-18

7x10