Lamont’s grandmother started a stamp collection in 1932 (year 1) and added the same number of stamps to the collection each year. When Lamont’s mother received the collection at the end of 1972, there were 203 stamps in the collection. Lamont’s mother continued to add the same number of stamps to the collection each year. When Lamont received the collection at the end of 2009, there were 383 stamps in the collection. If Lamont continued to add the same number of stamps each year, how many stamps were in the collection at the end of 2018 (year 87)? 403 433 563 663