Coming off their divisional road win over the Raiders, the Chargers flew to Dolphin Stadium for a Week 5 duel with the Miami Dolphins.  In the first quarter, the 'Bolts struck first with kicker Nate Kaeding getting a 34-yard field goal.  The Dolphins would respond with kicker Dan Carpenter nailing a 47-yard field goal.  In the second quarter, Miami took the lead as QB Chad Pennington completing a 17-yard TD pass to WR Greg Camarillo, along with RB Ronnie Brown getting a 5-yard TD run.  In the third quarter, San Diego tried to rally as QB Philip Rivers completed a 17-yard TD pass to WR Chris Chambers (a former Dolphin).  However, Miami's defense prevented the 'Bolts from striking again.
Question: How many is the difference in the number of yards of the field goal made by Kaeding and the yards of the field goal made by Carpenter?
Answer: 13