amazing kata,
this is the first 4 kyu kata i have ever completed and i have to say it took me a solid hour and a half, but man i was almost sure i wouldnt be able to do it.

really challenging and meticulous kata. However,
the last part of the desciption regarding what you should do if the length of the strings was the same,
was poorly explained and it took a lot out of me until i figured it out.
cheers.

Print clearly the input and your output to see what happens.

hello
my lenguage is java

i am passing all the random tests and even the fixed ones are correct. However, i am getting and
error a have never seen before and have no idea on how to fix it.
it gives me an error saying "for input string '' ",
please i would like some help as i have been trying to resolve this kata for over an hour