A book about architecture I'm trying to read (it's a bit of a slog what with the technical jargon and such) contained this description of a temple building: 二重、初重５X4間、裳階 （もこし） つき、上重４X3間. So it's two stories, the first being five rooms by four, with lean-to rooms attached, etc. I have a few questions about this. First, how is the "X" in 5X4 read? Additionally, I'm assuming that 初重 and 上重 are read しょじゅう and じょうじゅう, respectively. Is this correct?