#include <list>		// provides list

#include <vector>		// provides vector

#include <iostream>	// provides cout

#include <numeric>	// provides accumulate



using namespace std;

void main()

{

	vector<float> vector_of_floats;

	for (float f = 1.0; f < 2.0; f+=0.1)

	{	vector_of_floats.push_back(f);	}



	list<float>	list_of_floats(vector_of_floats.begin(), vector_of_floats.end());

	list_of_floats.reverse();



	if (  accumulate(vector_of_floats.begin(), vector_of_floats.end(),0) == 

			accumulate(list_of_floats.begin(), list_of_floats.end(),0))

	{	cout << "Addition is commutative!";	}

}