#include <iostream>
#include <sstream>
#include <string>
#include <vector>
 
int main()
{
	std::string test = "[1:2:3:4]cd/dvd  PLDS  DVD-RW DU8A6SH DU53  /dev/sr0";
 
	std::string::size_type begin = test.find('[') + 1;
	std::string::size_type end = test.find(']', begin);
	std::string sub = test.substr(begin, end - begin);
 
	std::vector<int> arr;
	std::istringstream iss(sub);
	int temp;
	while (iss >> temp) {
	    arr.push_back(temp);
    	iss.ignore();
	}
 
	for(auto &s : arr)
		std::cout << s << std::endl;
 
	return 0;
}

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