Give a solution to the following puzzle.
Input: You have three different stacks of coins. Each stack has at least one coin, and all coins in each stack are the same type.

The stacks look like this:

Stack 1: 1 cent 
Stack 2: 5 cents
Stack 3: 11 cents

You must move only one coin to make the three stacks have the same value.
You need to move a single coin from the 1 cent stack to the 11 cent stack so that all three stacks have the same value. The coins added to the 11 cent stack should be worth 2 cents so that the total value of that stack is 13 cents. Therefore, a 1 cent coin should be moved to the 11 cent stack.
If you move the coin from Stack 1 to Stack 2, the two remaining stacks will have the same value: 5 and 11 cents.