#include <iostream>
#include <vector>

int main() {
    int a, b;
    std::cin>>a>>b;

    std::vector<int> ivec;
    ivec.reserve(b-a);

    for(int i=a; i<=b; ++i) {
        if(i % 3 ==0){
            ivec.emplace_back(i);
            continue;
        }
        if(std::to_string(i).find('3') != std::string::npos) {
            ivec.emplace_back(i);
        }
    }
    for(auto i : ivec) {
        std::cout<<i<<std::endl;
    }
}