#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
int main(void){
  int a,b,i;
  char x[11],y[2]="3";
  scanf("%d %d",&a,&b);
  for(i=a;i<=b;i++){
    sprintf(x,"%d",i);
    if(i%3==0)
      printf("%d\n",i);
    else if(strstr(x,y)!=NULL)
      printf("%d\n",i);
  }
return 0;
}