empty
empty
empty

zero
A
A A A A A A A A A A
B B B B B
C C C C C
D D D D D
E E E E E

0 1 2 3 4 5 6 7 8 9
1 3 5 7 9
10 8 6 4 2
0.5 1.5 2.5 3.5 4.5
5.5 4.5 3.5 2.5 1.5
2 4 6 8 10
10 8 6 4 2


N N N N N N N N N N
0 1 2 3 4 5 6 7 8 9
10 9 8 7 6 5 4 3 2 1


3 6 9


(0 0)(1 1)(2 2)(3 3)(4 4)(5 5)(6 6)(7 7)(8 8)(9 9)
(0 0)(1 1)(2 2)(3 3)(4 4)(5 5)(6 6)(7 7)(8 8)(9 9)

(0 0)(1 1)(2 2)(3 3)(4 4)(5 5)(6 6)(7 7)(8 8)(9 9)
(0 0)(1 1)(2 2)(3 3)(4 4)(5 5)(6 6)(7 7)(8 8)(9 9)
(0 0)(1 1)(2 2)(3 3)(4 4)(5 5)(6 6)(7 7)(8 8)(9 9)(10 10)
(0 0)(1 1)(2 2)(3 3)(4 4)(5 5)(6 6)(7 7)(8 8)(9 9)(10 10)

(10 10)(9 9)(8 8)(7 7)(6 6)(5 5)(4 4)(3 3)(2 2)(1 1)
(10 10)(9 9)(8 8)(7 7)(6 6)(5 5)(4 4)(3 3)(2 2)(1 1)
(10 10)(9 9)(8 8)(7 7)(6 6)(5 5)(4 4)(3 3)(2 2)(1 1)(0 0)
(10 10)(9 9)(8 8)(7 7)(6 6)(5 5)(4 4)(3 3)(2 2)(1 1)(0 0)
