Python Code Only: One day, Fred and his N friends were playing a card game in which each player throws a cardwith a number written on it. The cards are such that a number X is written on front of the...

Extracted text: Python Code Only: One day, Fred and his N friends were playing a card game in which each player throws a cardwith a number written on it. The cards are such that a number X is written on front of the card, and the negative of that number is written on the back side of the card. This game has the following rules: Each of the N players is asked to throw a card. After at the N cards are thrown. Fred has to flip one or more cards in consecutive order, only once. Your task is to help Fred flip the cards in such a way that the sum of the numbers, on front face of the cards is the maximum. Input: -1 23 4 -5 Output: 13