#include <iostream>
using namespace std;

int main() {
	int a,b,c;cin>>a>>b;
	for(int i=a;i<=b;i++)
	{
		if(i%3==0)cout<<i<<endl;
		else
		{
			c=i;
			while(c)
			{
				if(c%10==3){cout<<i<<endl;c=0;}
				else c/=10;
			}
		}
	}
	return 0;
}