Task: Question Generation
Input (English): Passage: The Chargers began their 2008 campaign at home against the Carolina Panthers.  After a scoreless first quarter, the Panthers pounced first as kicker John Kasay got a 44-yard field goal.  The Chargers would take the lead with QB Philip Rivers completing a 44-yard TD pass to WR Chris Chambers, yet Carolina would take the halftime lead as Kasay nailed a 33-yard and a 30-yard field goal.  In the third quarter, San Diego got the lead with kicker Nate Kaeding getting a 27-yard field goal, yet the Panthers regained the lead with CB Chris Gamble returning a fumble 31 yards for a touchdown.  In the fourth quarter, Carolina increased its lead with Kasay nailing a 49-yard field goal.  Afterwards, the Chargers got the lead again with Rivers completing a 24-yard TD pass to TE Antonio Gates and a 5-yard TD pass to WR Vincent Jackson.  Unfortunately for San Diego, Panthers QB Jake Delhomme threw the game-winning 14-yard TD pass to TE Dante Rosario as time expired. With the surprising loss, San Diego began its season at 0-1.
Output (English): How many yards longer was John Kasay's longest field goal of the first half compared to his shortest of the first half?