import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Ophuj {
    public static void main(String[] args) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String expression = reader.readLine();
        while (!expression.isEmpty()) {
            if (expression.contains("+")) {
                int a = Integer.parseInt(expression.substring(0, expression.indexOf("+")));
                int b = Integer.parseInt(expression.substring(expression.indexOf("+") + 1, expression.length()));
                System.out.println(a + b);
            }
            expression = reader.readLine();
        }
    }
}