float i_buf[10000000];
float o_buf[10000000];

float newtons_sqrt(float n) {
  const float prec = 0.0000000001;
  if (n <= 0) {
    return 0;
  }

  float x = n;
  float r = (n + 1) * 0.5;
  float d;
  if (x < r) {
      d = r - x;
  } else {
      d = x - r;
  }
  while (d > prec) {
    r = (x + n / x) * 0.5;
    if (x < r) {
        d = r - x;
    } else {
        d = x - r;
    }
    x = r;
  }
  return r;
}


int main() {
  int n = getfarray(i_buf);
  starttime();

  int i = 0;
  while (i < n) {
    o_buf[i] = newtons_sqrt(i_buf[i]);
    i = i + 1;
  }

  stoptime();
  putfarray(n, o_buf);
  return 0;

}