Rust random-test failing but anyways resulting as a correct solution.

Python 3

As i am getting really big test results for instance
34 should equal 5290740 i was wondering if this was a kata issue or not, since i don't think it's possible to get 5290740 as least multiple without a big input too.

probably i didnt understood the challenge as i should, so i wanted to ask this before retrying

I don't understand why am getting a format-specifier expection feedback in C
All the previous tests works fine, this is confusing me quite a lot.
Could it be an issue with my code or the actual kata?

Here's my output as my passed result:

elbuod
s% .) d%( LLdecaps
s% .)d %( LLIsdro w