Cities skylines without ß?

I really like to play cities skylines on the Ps4 and it's almost perfect, but now when naming streets I noticed that there's no ß in the keyboard. There may be some trick how to find it that's why I ask you.

At most look for a mod that adds that, but I see little chance as it is a very small upgrade for the game.

It's a game by Finnish developers and a Swedish company acts as publisher - both communicate a lot, even exclusively in English, and there's no "ß" in English!