Fill the grid below with positive integers (one per cell) following these three rules:
i. Each entry in the top row is one digit.
ii. Each entry in any row below the top row is the sum of the two entries
immediately above it.
iii. Each pair of same-color squares contain the same integer. These five distinct
integers are used exactly twice and no other integer is used more than once.
Show that your solution is unique. You must submit your work
showing how you arrived at the solution.
2.