#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint1000000007;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000000000000
	

int main(){	
	
	long long A,B;
	cin>>A>>B;
	
	for(long long i=A;i<=B;i++){
		if(i%3==0){
			cout<<i<<endl;
			continue;
		}
		bool f = false;
		string s = to_string(i);
		rep(j,s.size()){
			if(s[j]=='3')f = true;
		}
		if(f)cout<<i<<endl;
	}
	
	return 0;
	
}