#include "math.h"

$input double m, expo;
$assume(m < 0 && expo > 0);

int main() {
  double x = -4. * m;

  x = pow(x, expo);
  x = pow(x, 1. / 2.);
  x = pow(x, 1. / expo);
  $assert(x == 2. * pow(-m, 1. / 2.));
  return 0;
}