What Are The Next Letters Cd Hi Mn Rs

What's the next card? CDHIMNRS? 3

WX has the following characters:

WX

Between 3 characters

CDefgHIjklMNopqRStuvWX

There is space for three characters between each pair:

CD (EFG) HI (JKL) MN (OPQ) RS (TUV) WX

So the next two letters are WX.

What Are The Next Letters Cd Hi Mn Rs