No Numerals Test 3 failed C# CodeCoach

Question

Hi guys ,my code pass all tests except the third
My code check 10 and put it "ten",
Also numbers above 10 doesnt change them
But i still get error in test 3.
Any help i will be apperciate it

Solved :
https://code.sololearn.com/cdaE79ybbTEl/?ref=app

Answer 1

It fails if there is an odd number of digits 3 or greater.

Input 123
Outputs 12three
Input 1234
Outputs 1234
Input 12345
Outputs 1234five
Etc.

Answer 2

If the 1st number your code comes across is greater than 10 then it just outputs the original input instead of checking the rest of the input string.

Answer 3

I change the code to check every single number but the test 3 get failed again , ex:
Input : 22 1 2
Output : 22 one two
Is there anyother condition ?