#include <iostream>
#include <vector>
#include <cstdlib>
typedef std::vector<double> VecType;
double f(const VecType &coefficients, const VecType &history) {
   double result(0);
   for(unsigned i = 0; i < coefficients.size(); ++i)
      result += coefficients[i] * history[i];
   return result;
}

void shift(VecType &vec, double current) {
   for(unsigned int i = vec.size() - 1; i > 0; --i)
      vec[i] = vec[i-1];
   vec[0] = current;
}

int main(int argc, char **argv) {
   VecType coefficients;
   for(int i = 1; i < argc; ++i) {
      double cur(std::strtod(argv[i],nullptr));
      coefficients.push_back(cur);
   }

   VecType history = VecType(coefficients.size(),0.0);

   double current = 1.0;
   VecType outVec;
   for(unsigned i = 0; current <= 2.0; i++) {
      if(current > 1.0)
         outVec.push_back(current);
      shift(history,current);
      current = f(coefficients, history);
   }
   std::cout << "KW test Scale" << std::endl;
   std::cout << outVec.size()+1 << std::endl;
   for(const auto &curval : outVec) {
		double scaledVal = ((curval - 1.0) * 1200.00) + 100.0;
		std::cout << "! " << curval << std::endl;
      std::cout << scaledVal << std::endl;
   }
	std::cout << "! octave" << std::endl << "1200.00" << std::endl;
}