Help me to solve test 3 in convert us date to eu date

Question

Help, and tell the reasons
https://code.sololearn.com/c24UCWLGux1q/?ref=app

Answer 1

If you are going to post a new question, please delete your old one, thanks.

https://www.sololearn.com/Discuss/2224588/?ref=app

for failed case, please read the example in the question

the month is in full word, not shorten to three letters only