#include <bits/stdc++.h>

using namespace std;

int main(){
    int a, b, s, l, ans = 0;
    cin >> a >> b;
    for(int i = a; i <= b; i++){
        l = (int)log10(i);
        a = i;
        while(l>=0){
            if(a%10 != a/((int)pow(10, l))){
                break;
            }
            a = (a%(int)pow(10, l))/10;
            l -= 2;
        }
        if(l < 0){continue;}

        a = i;
        s = 0;
        while(a>0){
            s += a%10;
            a /= 10;
        }
        l = (int)log10(s);
        while(l>=0){
            if(s%10 != s/((int)pow(10, l))){
                break;
            }
            s = (s%(int)pow(10, l))/10;
            l -= 2;
        }
        if(l < 0){
            cout << i << endl;
            ans = 1;
        }
    }
    if(!ans){
        cout << "NO" << endl;
    }
    return 0;
}
