#include <cstdio>
#include <cstdlib>
#include <vector>
#include <cmath>
#include <string>
#include <iostream>

void PrintAll3(int a, int b)
{
  for(int i=a; i<=b; i++){
    if( i % 3 == 0 ){
      printf("%d\n",i);
    }else if(std::to_string(i).find("3") != std::string::npos){
      printf("%d\n",i);
    }
  }
}

int main(void)
{
  int a,b;
  scanf("%d",&a);
  scanf("%d",&b);
  PrintAll3(a,b);
  return 0;
}