#include <stdio.h>

int main(void){
  int a,b;
  scanf("%d",&a); scanf("%d",&b);

  for(int i = a; i <= b; i++){
    if(i % 3 == 0)printf("%d\n",i);
    else if(i % 10 == 3)printf("%d\n",i);
    else{
      for(int j = i; j > 1; j /= 10){
        if(j == 3)printf("%d\n",i);
      }
    }
  }
  return 0;
}