Help choosing string length for Pineapple Soprano

I own a Lanikai LU-21P Pineapple Soprano Ukulele.I am unsure whether to buy soprano or concert length strings as the scale length is labeled 14". Can somebody please provide me with the information I need?

Thank you all for your time!

Buy soprano strings.

Thank you very much!

BBU, wasn't part of the reason for ADF#B to put a bit more tension on strings to brighten up the sound? Can that same slight increase in tension be accomplished by using concert strings on a soprano? Concert strings are used on a long neck soprano. There is no difference in body bracing between the two soprano bodies.