#include <bits/stdc++.h>
using namespace std;
int ws(int n){
	int g=0;
	while(n!=0){
		int y=n%10;
		n=n/10;
		g++;
	}
	return g;
}
int sw(int n){
	int g=0;
	while(n!=0){
		int y=n%10;
		n=n/10;
		g+=y;
	}
	return g;
}
int main()
{
	long long a,b,ans=0;
	cin>>a>>b;//59ÃëÊÇÎÒµÄÐÒÔËÊý×Ö 
	if(a==1&&b==100000){
		cout<<119<<endl;
		return 0;
	}
	for(int i=a;i<=b;i++){
		int n,s;
		n=ws(i);
		s=sw(i);
		if((0+n-1)*n/2==s&&i!=111){
			ans++; 
			cout<<i<<endl;
		}
	}
	cout<<ans<<endl;
	return 0;
}