In a game a coin is tossed 2n+m times and a player wins if he does not get any two consecutive outcomes same for atleast 2n times in a row. The probability that player wins the game is

In a game a coin is tossed 2n+m times and a player wins if he does not get any two consecutive outcomes same for atleast 2n times in a row. The probability that player wins the game is

Question : In a game a coin is tossed 2n+m times and a player wins if he does not get any two consecutive outcomes same for atleast 2n times in a row. The probability that player wins the game is