Task: Question Answering
Input (English): Passage: After their embarrassing 17-point comeback loss four days prior, the Panthers hosted the Saints in a Thursday Night 'Color Rush' Matchup. Just like in the Chiefs game, the Panthers went into the fourth quarter holding New Orleans to only three points. They had a 23-3 lead but the Saints managed to rally and get within three with 5:11 left in the game. Late in the fourth quarter star linebacker Luke Kuechly left the game and was evaluated for a concussion. The Panthers were able to hold off New Orleans and win 23-20, improving to 4-6. 
Question: By how many points were the Panthers ahead at their furthest lead? 
Answer type: Number 
Output (English): 20.