Andrew transferred an office building that had an adjusted basis of $180,000 and a fair market value of $350,000 to Dickens Corporation in exchange for 80% of Dickens' only class of stock. The building was subject to a mortgage of $200,000, which Dickens assumed for valid business reasons. The fair market value of the stock on the date of the transfer was $150,000. What is the amount of Andrew's recognized gain?