#include<iostream>
#include<cmath>
using namespace std;


bool WanMeiShu(int n);

int main(){
	
	int a,b;
	cin>>a>>b;
	
	for(int i=a;i<=b;i++){
		
		if(WanMeiShu(i)){
			cout<<i<<" ";
		}
	}
} 

bool WanMeiShu(int n){
	
	int s;
	int j;
	s=1; 
	
	
	for(int i=2;i<=sqrt(n);i++){
		if(n%i==0){
			s=s+i;
			j=n/i;
			
			if(i!=j){
				s=s+j;
			}
				
		}
	}
	
	if(s==n)
		return true;
	else
		return false;
	
}

/**************************************************************
	Problem: 1136
	User: admin
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/