// Задача 1.7 Кучеренко

begin
  var A, C: real;
  write('Vvedite A: ');
  readln(A);
  write('Vvedite C: ');
  readln(C);
  
  if abs(A) = abs(C) then
    C := 0.125 * C
  else
    C := 2 * C;
  
  writeln('C = ', C);
end.