A cylinder of radius a = 8.7 cm and height h = 8.7 cm is aligned with its axis along the y-axis as shown. What is the total flux that passes through

A cylinder of radius a = 8.7 cm and height h = 8.7 cm is aligned with its axis along the y-axis as shown. What is the total flux Φ that passes through the cylindrical surface? Enter a positive number if the net flux leaves the cylinder and a negative number if the net flux enters the cylnder.Here is a picture: http://gyazo.com/2ffd2a28a58d176ef11f503c7c3387dc