#include<iostream>

using namespace std;

int main(){
    int A, B, nowNumber, num, dig, countThree;
    cin >> A >> B;
    for(nowNumber=A;nowNumber<=B;nowNumber++){
	if(nowNumber % 3 == 0){
	    cout << nowNumber << endl;
	}else{
	    countThree = 0;
	    num = nowNumber;
	    while(num > 0){
		dig = num % 10;
		num = num / 10;
		if(dig == 3){
		    countThree+=1;
		}
	    }
	    if(countThree > 0){
		cout << nowNumber << endl;
	    }
	}
    }
}