#include <stdio.h>
int main(){
    unsigned long a,b;
    char numAsStr[11];
    scanf("%ld %ld",&a,&b);
    for (;a<=b;a++){
        if (!(a%3) || [&]()->bool{
            sprintf(numAsStr,"%ld",a);
            for(const char& chara:numAsStr){
              if (chara == '3') return true;
              if (chara == '\0') break;
            }
            return false;
        }())printf("%ld\n",a);
        
    }
}