Table:
text: Viking Cruises
Ships cruising in Asia
Ships cruising in Asia
Ship_name Year_built Length_ Crew Guests Staterooms Comments
Viking Emerald 2011 361 feet 138 246 132 Yangtze River, China
Viking Mandalay 2002 180 feet 28 60 30 Irrawaddy River, Myanmar (Burma)
Viking Mekong 2012 168 feet 25 60 30 Mekong River, Vietnam & Cambodia
Viking Sagaing 2011 168 feet 25 60 30 Irrawaddy River, Myanmar (Burma)
RV Indochina 2008 180 feet 28 60 30 Mekong River, Vietnam & Cambodia

Question: What is the sum of cabins built in 2008 and crewed less than 28 for Viking Cruises ships sailing in Asia?

Question: What is the total for guests on Viking Cruises ships cruising in Asia with ship name rv indochina and crew fewer than 28?