#include <string.h>
#include <iostream>
#include <string>
#include <vector>
#include <string.h>
#include <stdlib.h>
#include <fstream>

using namespace std;

vector<string> input;

void read() {

	string line;
	ifstream myfile("adunare.in");
	if (myfile.is_open())
	{
		while (getline(myfile, line))
		{
			input.push_back(line);
		}
		myfile.close();
	}

}

int main()
{
	read();
	ofstream g("adunare.out");

	int suma = 0;
	for (int i =  0 ; i < input.size();i++)
	{
		suma += atoi(input[i].c_str());
	}

	g << suma;

    return 0;
}