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

public class Print_And_Sum {
    public static void main(String[] args) throws IOException {
        BufferedReader Render_Print_And_Sum = new BufferedReader(new InputStreamReader(System.in));

        int number = Integer.parseInt(Render_Print_And_Sum.readLine());
        int sum = Integer.parseInt(Render_Print_And_Sum.readLine());

        for (int i = number; number <= sum ; i++) {
            number += i + ' ';
            sum += i;
        }

        System.out.println(String.format("%d ", number));
        System.out.print(String.format("Sum: %d", sum));
    }
}