What does Recette say when placing down an item?

What Japanese sentense/phrase that Recette shouts when place an item in her shop?

I hear the words "nani-kuo-sen-me .... a-do---- ni"? What is it? (なに ...?)

This is nagging me for several years.
If possible, please answer it Japanese character.

You can hear it at

I do not have any affiliate with the clip's channel, if anyone can provide a better link, feel free to comment/edit.

Solution 1:

She says

"何がいいかな？" which means "I wonder what's good?", while selecting an item from the inventory.

This is followed by "ええい！" which can be translated as "Yeah!" as she puts the heavy item down.