#include<stdio.h>

int main(void){
    long A, B;
    
    scanf("%ld %ld",&A, &B);
    
    for(long i=A;i<=B;i++){
        int c = i%3;
        long d;
        if(c==0){
            printf("%ld\n",i);
        }else{
            for(d=i;d>10;d/=10){
                if(d%10==3){
                    printf("%ld\n",i);
                    break;
                }else if(d/10==3){
                    printf("%ld\n",i);
                    break;
                }
            }
        }
    }
}