#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <string>
#include <cmath>
#include <algorithm>
#include <vector>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <cstring>

typedef long long ll;
using namespace std;

const int mod = 1000000007;
const int INF = (int)1e9;
const ll LLINF = (ll)2e18;
const double PI = 3.1415926536;

const int SIZE = 1000;

int main(){
    int a,b;
    
    scanf("%d%d",&a,&b);
    
    for(int i=a;i<=b;i++){
        
        if(i%3==0){
            printf("%d\n",i);
        }else{
            int s = i;
            while(s){
                if(s%10==3){
                    printf("%d\n",i);
                    break;
                }
                s/=10;
            }
        }
    }
    
    return 0;
}