Fill the nine numbers - 8, - 6, - 4, - 2,0,2,4,6,8 into the nine spaces in the figure below, so that the three numbers in each row and the three numbers in each column are diagonally aligned

Fill the nine numbers - 8, - 6, - 4, - 2,0,2,4,6,8 into the nine spaces in the figure below, so that the three numbers in each row and the three numbers in each column are diagonally aligned

The arrangement of circles is as follows: 10 58 4 6 2 7 3 9 1
The clockwise arrangement is: 10 1 9 3 7 2 6 4 8 5 10
As shown in the figure, fill in the 10 spaces of the ring with the 10 numbers of 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 respectively, and add the absolute value of the difference between the two numbers in all the adjacent two lattices (with common edges). If the sum is maximum, the maximum value is——
Another question:
Equation x + x [1 + 2 +] x [1 + 2 + 3] + +1 + 2 + 3 ^ 2011 = 2011 how much is x

Put the two numbers with the largest difference together until the smallest difference, for example: 10 to 1, 9 to 2, 5 to 5, 1 to 10
I can't understand the second question