Press natural numbers by 1, 2, 3 Eight numbers in an unlimited line, and then Press natural numbers by 1, 2, 3 If the sum of the six numbers in the box is 432, what is the sum of the two numbers in the upper left corner and the lower right corner?

Press natural numbers by 1, 2, 3 Eight numbers in an unlimited line, and then Press natural numbers by 1, 2, 3 If the sum of the six numbers in the box is 432, what is the sum of the two numbers in the upper left corner and the lower right corner?

67 in the upper left corner and 77 in the lower right corner
The sum of them is just 432 divided by 3