#include <iostream>
#include <cstdlib>
#include <string>
#include <sstream>

int main(int argc, char* argv[])
{
	double x, y;
	std::ostringstream out;
	out << 5.4 + 22.4;
	std::cout << out.str() << std::endl;	
	std::cout << out.str().c_str() << std::endl;	
	return 0;
}