#include <stdio.h>

int ret3 (int x);

int main(void){
  int A, B, i;

  scanf("%d%d", &A, &B);

  for(i=A;i<=B;i++)
    if(!(i%3) || ret3(i)) printf("%d\n", i);

  return 0;
}

int ret3 (int x){
  int y=x;
  do{
    if(!(y%10-3)) return 1;
    y=y/10;
  } while(y);

  return 0;
}