1
[4x3-7] [6x3/2] [3x3-5] [4x4/8] [(7+5)/2] [(8+7)/5] [(6+8)/2]
2
|
|
1
[4x3-7] [6x3/2] [3x3-5] [4x4/8] [(7+5)/2] [(8+7)/5] [(6+8)/2]
2
[6x2/3] [3x4-9] [4x6/3] [6+7-8] [5+6-4] [6x6/4] |