32542325

const
  eps = 0.00001;
  x = 1 / 5;
  x2 = 1 / 239;

var
  d, s, s2, p, p2: real;
  k: integer;

begin
    S := x;
    P := x;
    k := 0;
    while(abs(p/(2*k+3)) >= eps) do
    begin
        inc(k);
        p := (-p)*(x*x)*(2*k+1);
        s := s + (p/(2*k+3));
    end;

    S2 := x2;
    P2 := x2;
    k := 0;
    while(abs(p2/(2*k+3)) >= eps) do
    begin
        inc(k);
        p2 := (-p2)*(x2*x2)*(2*k+1);
        s2 := s2 + (p2/(2*k+3));
    end;

    d := (16 * s) - (4 * s2);

    writeln(d)
end.