Can Someone Help me Fixing This

Question

I try practice and the test case #1-3 i can solved it but the hidden one / test case #4-5 i cannot can someone see my mistake
https://code.sololearn.com/cJB6R38fJ7wx/?ref=app

Answer 1

Darren Ardhianata

There should be 2 not 3 for pairs

Read this statement again:

"Entrance to the club is only permitted in pairs."

Answer 2

Thank you so much