I need help in myabstract math question. The question is about the introduction of abstract math. Please help me to solve it. I need the step and the answer. We useAn Introduction to AbstractMathematicsbyNeil Donaldson and Alessandra Pantano.Thank you.

Question:

Recall the two-dimensional variant of our board game.We have a sequence of squares,extending innitely up and innitely to the right, and a coin is in one of the squares.Player Aand then Player B take turns moving the coin.The players always have four options: move leftone or two spaces, or else move down one or two spaces.A player loses if she/he moves thecoin off the board. .. ... (2,1)(2,2)(2,3)(2,4)(2,5)(1,1)(1,2)(1,3)(1,4)(1,5) Prove using induction that if Player A begins on square(n, n), then Player A doesnot have a winning strategy.