#include <iostream>
#include <string>
#include <sstream>
 
 
std::string Indent(std::string s)
{
	std::string result;
 
	std::istringstream iss(s);
 
	for (std::string line; std::getline(iss, line); )
	{
    	result += "  " + line + "\n";
	}
 
	return result;
}
 
 
int main() {
	std::string in;
	in += "<region>test\n";
	in += "  <left>3</left>\n";
	in += "  <right>4</right>\n";
	in += "</region>\n";
 
	std::string out;
	out += "<texture>lel\n";
	out += Indent(in);
	out += "</texture>\n";
 
	printf("%s\n", out.c_str());
	return 0;
}

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