#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

bool valid(ll num){
    if(num % 3 == 0)return true;
    bool find = false;
    while(num != 0){
        if(num % 10 == 3)find = true;
        num /= 10;
    }
    return find;
}

int main(){
    ll a, b;
    cin >> a >> b;
    for(ll i=a;i<=b;i++){
        if(valid(i)){
            cout << i << endl;
        }
    }
    return 0;
}