// appending_to_file

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
	int length = 0;
	int width = 0;
	ifstream infile("C:/Temp/data.txt");
	ofstream outfile("C:/Temp/resultsAppended.txt", ios::app);

	infile >> length;
	infile >> width;

	outfile << length * 2 + width * 2 << endl;

	return 0;
}// end of main