#include <iostream>
#include <string>

using namespace std;

int main(){
	unsigned long a,b;
	cin>>a>>b;

	for (; a < b; ++a)
	{
		if (a%3 == 0)
		{
			cout<<a<<endl;
			continue;
		}
		if (to_string(a).find("3") != string::npos)
		{
			cout<<a<<endl;
		}
	}
}