Trying to snap a four-game losing streak, the Raiders flew to Invesco Field at Mile High for a Week 12 AFC West rematch with the Denver Broncos. After a scoreless first quarter, Oakland drew first blood with kicker Sebastian Janikowski getting a 26-yard field goal. The Broncos would respond with kicker Matt Prater getting a 44-yard field goal. The Raiders would close out the half as WR Johnnie Lee Higgins returned a punt 89 yards for a touchdown. In the third quarter, Denver tied the game with FB Peyton Hillis getting a 6-yard TD run. Oakland would reply with rookie RB Darren McFadden getting a 1-yard TD run. In the fourth quarter, the Raiders pulled away as QB JaMarcus Russell completed a 4-yard TD pass to former Broncos WR Ashley Lelie, while McFadden got another 1-yard TD run.

Based on the above article, answer a question. How many yards was the total yardage of all the offensive touchdowns combined?
12