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P1, P2, P3,...........,P8 are 8 players ...

`P_1, P_2, P_3,...........,P_8 are 8` players of equal strength who play with each other in a knockout tournament. The probability that `P_1` wins against `P_2 and P_3` to reach the final and also wins the tournament is p, then 42p is equal to

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