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

int main() {
  long long A, B; cin >> A >> B;
  for(long long i = A; i <= B; i++){
    if(i%3 == 0) cout << i << endl;
    else{
      bool flag = false;
      long long j = i;
      while(j != 0){
        if(j%10 == 3) flag = true;
        j /= 10;
      }
      if(flag) cout << i << endl;
    }
  }
}