#include <iostream>
using namespace std;

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

int main()
{
    int a, b;
    cin >> a >> b;
    for(int i=a; i<=b; ++i)
        if (ok(i)) cout << i << endl;
}