#include <iostream>
#include <string>
using namespace std;

bool exists3(int n)
{
	while (n>0) {
		if (n%10==3) return true;
		n /= 10;
	}
	return false;
}

int main(int argc, char**argv)
{
	int a, b;
	cin >> a >> b;
	for (;a<=b;++a) {
		if ( a%3==0 || exists3(a) )
			cout << a << endl;
	}

	return 0;
}