#include <iostream>

using namespace std;

int judge( int i )
{
        if( i % 3 == 0 ) return 1;

        while( i != 0 )
        {
                if( i % 10 == 3 ) return 1;
                i /= 10;
        }

        return 0;
}

int main()
{
        int a = 0;
        int b = 0;

        cin >> a >> b;

        for( int i = a; i <= b; i++ )
        {
                if( judge( i ) ) cout << i << endl;
        }

        return 0;
}