A string s is called GOOD if it satisfies the following conditions:

$$ s only contains the letters $\text{'}$a$\text{'},\text{'}$b$\text{'},$ and $\text{'}$c$\text{'}.$

$$ s does not contain any of "aaa", $"$bbb$",$ or $"$ccc$"$ as a substring.

$$ s contains at most a occurrences of the letter $\text{'}$a$\text{'}.$

$$ s contains at most b occurrences of the letter $\text{'}$b$\text{'}.$

$$ s contains at most c occurrences of the letter $\text{'}$c$\text{'}.$

Given three integers a$,$ b$,$ and c$,$ return the longest possible GOOD string. If there are multiple longest happy strings, return any of them. If there is no such string, return the empty string $"".$

A substring is a contiguous sequence of characters within a string in java$8.$