#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>

using namespace std;

#define rep(i,n) for(int i=0;i<(n);i++)
int main(void){
    int a, b, j, o; cin >> a >> b;
    for(int i = a; i < b; i++){
        j = i + 1;
        if (j % 3 == 0 || j % 10 == 3){
            cout << j << endl;
        }else{
            o = j;
            while (o > 0) {
        		if (o % 10 == 3) {
        			cout << j << endl;
        		}
        		o = o / 10;
        	}
        }
    }
}