pairing a dish containing all vowels with itself

Hi,

The answer is great but I have a doubt regarding pairing a dish containing all vowels with itself.

For example, if there are there dishes A, B, C containing all vowels, we have to pair A with B, C, and B with C.

This case will be missing when we consider did not pair a dish containing all vowels with itself.

will you explain to me if I got anything wrong?

Thankyou

It is not clear what you are asking. Please share the problem name and link.

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