Trying to snap a two-game skid, the Raiders flew to LP Field for a Week 8 interconference duel with the Tennessee Titans.  In the first quarter, Oakland struck first with kicker Sebastian Janikowski getting a 50-yard field goal.  The Titans would respond with kicker Rob Bironas getting a 35-yard field goal.  In the second quarter, the Raiders jumped back into the lead with Janikowski kicking a 43-yard and a 54-yard field goal. In the third quarter, Tennessee drew close with RB Chris Henry getting a 24-yard TD run for the only score of the period.  In the fourth quarter, the Titans took the lead with Bironas getting a 23-yard field goal.  QB Daunte Culpepper tried to lead Oakland back into the lead, but Tennessee's defense held them off. With their third-straight loss, not only did the Raiders fall to 2-5, but they have now lost 14 out of their last 15 road games.

Based on the above article, answer a question. How many yards longer was Rob Bironas' longest field goal than his shortest?
12