import java.io.;
import java.util.;
public class Main{
public static void main(String args[]) throws Exception{
Scanner cin = new Scanner(System.in);
var x = cin.nextDouble();
var y = cin.nextDouble();
System.out.printf("%.2f\n",x + y);
}
public static double add(double x, double y){
return x + y;
}
}