Student has light bulb 100 cm from screen and needs image of bulb with converging lens of focal length 15 cm?

A student is working in an optics lab and has a light bulb which is 100 cm from a screen. She needs to make a real image of the bulb on the screen and she has a converging lens with a focal length of +15 cm. Which two places can she put the lens? And what are the object and image distances for both setups?