Depends on whether you have all the accessories or not and whether it has warranty or not. If it doesn't have warranty and is bought from abroad, then get ready to be surprised by the real value of it. However, if you are lucky, then i agree with docebzz. Expect between 38-45.
And an advice, don't sell it in the market. For phones like this, they make profits of at least 8-10k so they will buy it from you in 30-35k.