open System open System.Collections.Generic [] module Cin = let read f = stdin.ReadLine() |> f let reada f = stdin.ReadLine().Split() |> Array.map f let readChars() = read string |> Seq.toArray let readInts() = readChars() |> Array.map (fun x -> Convert.ToInt32(x.ToString())) [] module Cout = let writer = new IO.StreamWriter(new IO.BufferedStream(Console.OpenStandardOutput())) let print (s: string) = writer.Write s let println (s: string) = writer.WriteLine s let inline puts (s: ^a) = string s |> println // ----------------------------------------------------------------------------------------------------- // ----------------------------------------------------------------------------------------------------- let main() = let [| p; c |] = reada int let psum = [ 2; 3; 5; 7; 11; 13 ] |> List.sum |> fun x -> float x / 6.0 let csum = [ 4; 6; 8; 9; 10; 12 ] |> List.sum |> fun x -> float x / 6.0 (pown psum p) * (pown csum c) |> puts () // ----------------------------------------------------------------------------------------------------- main() writer.Dispose()