Hoping to build on their road win over the Cardinals, the Rams returned home for a match-up with the Detroit Lions and their offensive coordinator, former Rams head coach Mike Martz.  In the first quarter, the Rams kicker Jeff Wilkins kicked a 42-yard and a 19-yard field goal to begin the game. The Lions kicker Jason Hanson kicked a 29-yard field goal. St. Louis distanced themselves, as QB Marc Bulger completed a 16-yard TD pass to rookie TE Joe Klopfenstein. In the second quarter, Lions QB Jon Kitna and WR Mike Furrey hooked up with each other on two touchdown passes (a 1-yarder and a 10-yarder), but the Rams retook the lead with Wilkins completing a 46-yard field goal. In the third quarter, St. Louis gained even more points, as Bulger connected with WR Torry Holt on a 16-yard TD strike.  Detroit got a 20-yard field goal from Hanson and RB Kevin Jones ran 35 yards for a touchdown, but the Rams had their RB, Steven Jackson, get a 1-yard TD run to add to their lead. In the fourth quarter, Jones ran for a 7-yard TD strike. The Rams closed out the game with a win, as Wilkins completed a 47-yard field goal and Bulger completed a 5-yard TD pass to WR Isaac Bruce. With the win, the Rams improved to 3-1.
Question: How many yards difference is there between the two field goals Jeff Wilkins kicked at the start of the game?
Answer: 23