#include <iostream>
#include <iomanip>

#include <algorithm>
#include <math.h>

#include <string>
#include <list>
/////////
#define REP(i, x, n) for(int i = x; i < n; i++)
#define rep(i,n) REP(i,0,n)
#define P(p) cout<<(p)<<endl;
/////////
typedef long long LL;
typedef long double LD;
/////////
using namespace::std;
/////////

int main(void){
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout << fixed;//
    //cout << setprecision(6);//

	int A,B;
	cin>>A>>B;
	//2000000000
	//2*10^9
	int sm,bg;
	if(A>B){
		bg = A;
		sm = B;
	}else{
		bg = B;
		sm = A;
	}
	for(int i = sm;i<=bg;++i){
		if(i%3 == 0){
			P(i);
		}
		else{
			for(int t=i;t > 0;t/=10){
				if(t%10 == 3){
					P(i);
					t=0;
				}
			}
		}
	}
    return 0;
}