#include <iomanip>
#include <iostream>
#include <sstream>

int main() {
  	std::stringstream os;

	os << &std::hex; // MISRA warning on this line
  	os << std::setw(2);
  	os << std::setfill('0');
  	os << 13;
  	
  	std::cout << os.str() << "\n";
	return 0;
}