#include <bits/stdc++.h>
using namespace std;

//--------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define RFOR(i,a,b) for(int i=(b)-1;i>=(a);i--)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define LL long long
#define INF INT_MAX/3

//--------------------------------------------
const double EPS = 1e-14;
const double PI  = acos(-1.0);

//--------------------------------------------

int main(){
  int a,b;
  string s;
  scanf("%d %d",&a,&b);
  FOR (i, a, b + 1) {
    if (i % 3 == 0) cout << i << "\n";
    else {
      s = to_string(i);
      if (int(s.find('3')) != -1) cout << i << "\n";
    }
  }
}