Example tests are already there, you have to deduce the logic on your own though

That's some trolling indeed

You can already see that in the example in the description.

The sequence is like this: 7,3,4,1,6,8,2

7,3,4,1
The first step, takes the the 3 (index 1) twice, so you get 6
3,4,1,6
The second step, takes the the 4 (index 1) twice, so you get 8
4,1,6,8
The third step, takes the the 1 (index 1) twice, so you get 2

Description says :

... and returns this string with word S in it eventually converted to their "pig-sursurunga number type".

...also :

EACH group of number+space+word found in the string should be evaluated.

... and examples :

  sursurungal('5 lions and 15 zebras') // -> '5 lionzo and 15 gazebraga' (paucal and plural)

Good idea: updated!

Hi, @Emzed89. I have updated test cases.

A Kata issue? Really?

Fixed now.