#include <iomanip>
#include <iostream>
#include <sstream>
#include <string>
 
int main() {
	std::stringstream ss;
	ss << "\"Primary, Secondary, Third\", \"Primary\", , \"Secondary\", 18, 4, 0, 0, 0";
 
	while (ss >> std::ws) {
		std::string csvElement;
 
		if (ss.peek() == '"') {
			ss >> std::quoted(csvElement);
			std::string discard;
			std::getline(ss, discard, ',');
		}
		else {
			std::getline(ss, csvElement, ',');
		}
 
		std::cout << csvElement << "\n";
	}
}

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