#include <fstream>
#include <iostream>
#include <algorithm>
#include <sstream>
 
int main()
{
    // std::ifstream ifstr("YourFile.txt");
    // std::istream & istr = ifstr;
 
    std::istream & istr = std::cin;
 
    std::vector<std::pair<double, double>> vec;
 
 
	std::string line;
 
	while ( std::getline(istr, line) )
	{
		if ( line == "undef, undef" )
			continue;
 
		std::stringstream ss(line);
 
		double a, b;
		char comma;
 
		while ( ss >> a >> comma >> b )
		{
			if ( comma == ',' )
				vec.emplace_back(a, b);
		}
	}
 
    std::for_each(std::begin(vec), std::end(vec), [](std::pair<double, double> const& x){ std::cout << x.first << " -> " << x.second << std::endl;});
 
    return 0;
}

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MCwgMC4zMjQ1CjAsIDAuNTU2NgowLCAwLjk1OTgKMSwgMC4wOTQ1CjEsIDAuODc0OAoxLCAwLjg3ODkKdW5kZWYsIHVuZGVmCjIsIDAuMDM1CjIsIDAuOTU0NSA=

0, 0.3245
0, 0.5566
0, 0.9598
1, 0.0945
1, 0.8748
1, 0.8789
undef, undef
2, 0.035
2, 0.9545