问答题
The values of grids A and B are given. What is the value of the grid C?
【正确答案】36
【答案解析】每一格中均有一个数字，见下表：
16 9 8 1
15 10 7 2
14 11 6 3
13 12 5 4
16 +13 +5 =34
8 +7 +1+2 +12 =30
13 +11 +7 +1 +4 =36)