#include <iostream>
#include <string>
#include <vector>

using namespace std;

bool func1(int x) {
    string s = to_string(x);
    if ( (int)s.find("3") != static_cast<int>(s.npos) ) {
        stoi(s);
        return true;
    } else {
        stoi(s);
        return false;
    }
}

bool func2(int y) {
    if((y / 3) && func1(y) ) return true;
    else return false;
}

int main() {
    int a,b;
    cin >> a >> b;
    const int c = b - a + 1;

    for ( int i = 0; i < c; ++i) {
        if ( func2(a) ) cout << a <<endl;
        ++a;
    }

    return 0;
}