//BufferedReader is faster than scanner as it doesn't parse the text. Iterated over 1000 times, it saves 30 seconds in total.
import java.io.BufferedReader;
import java.io.InputStreamReader;

class Average {
    public static void main(String[] args) throws java.io.IOException {
		    int a, b; 
		    
	            BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
		    BufferedReader input2 = new BufferedReader(new InputStreamReader(System.in));
		    a = Integer.parseInt(input.readLine());
                    b = Integer.parseInt(input2.readLine());
		    int s = a + b;
		    System.out.println("Average is: " + s/2);
		    
                    
                    
                    

    }
}