#include <iostream>
#include <cstring>

using namespace std;

int main()
{
	int A, B;
	char tmp[30];
	cin >> A >> B;
	for( int i = A; i <= B; i++ ) {
		if( i % 3 == 0 ) {
			cout << i << endl;
			continue;
		}
		sprintf( tmp, "%d", i );
		if( strchr( tmp, '3' ) != NULL ) {
			cout << i << endl;
		}
	}
	return 0;
}