#include <iostream>
using namespace std;
bool isInclude3(int n)
{
    while (true)
    {
        if (n % 10 == 3)
        {
            return true;
        }
        if (n / 10 == 3)
        {
            return true;
        }
        if (n < 10)
        {
            return false;
        }
        n /= 10;
    }
}
int main()
{
    int a,b;
    cin>>a>>b;
    for(int i=a;i<=b;i++){
        if(i%3==0 || isInclude3(i)){
            cout<<i<<"\n";
        }
    }
}