16dm²597mm² =........ mm²?

Dear grandma and grandpa,
I'm on holiday in Majoca with my friends, Tracy and Sharon . We arrived last Saturday. Thế first two days , the weather wasn't very nice , số we did some sightseeing . We took lots of photographs . On Wednesday we hired a car and drove out into the country . We stopped for lunch at a lovely little village and then in the afternoon we found a beautiful beach. Last night,we went to a disco . We dindn' t get back till about 4 a.m ., so we got up late this morning and we decided to have a relaxing day by the hotel swimming pool. So that's where I am now.