math
math
math
math
math
400

1+1

2

400

6+6

12

400

11+11

22

400

16+16

32

400

21+21

42

800

2+2

4

800

7+7

14

800

12+12

24

800

17+17

34

800

22+22

44

1200

3+3

6

1200

8+8

16

1200

13+13

26

1200

18+18

36

1200

23+23

46

1600

4+4

8

1600

9+9

18

1600

14+14

28

1600

19+19

38

1600

24+24

48

2000

5+5

10

2000

10+10

20

2000

15+15

30

2000

20+20

40

2000

25+25

50