import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while(true) {
            int X = sc.nextInt();
            int Y = sc.nextInt();
            if(X<=0||Y<=0){
                break;
            }
            int MIN=Math.min(X,Y);
            int MAX=Math.max(X,Y);
            int Sum=0;
            for(int i=MIN;i<=MAX;i++){
                System.out.printf("%d ",i);
                Sum=Sum+i;
            }
            System.out.printf("sum =%d\n",Sum);
        }
 
        sc.close();
    }
}
 

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NSAyCjUgNwo1IC0x

5 2
5 7
5 -1