#include <stdio.h>

void search(int x){
    int tmp=x;
    while(tmp>0){
        if((tmp%10)==3){
            printf("%d\n",x);
            break;
        }
        tmp/=10;
    }
}

int main(int argc, char * argv[]){
    int a,b,d,tmp,i;
    scanf("%d %d",&a,&b);
    d=b-a;
    for(i=0;i<=d;i++){
        tmp=a+i;
        if((tmp/3)==0){
            printf("%d\n",tmp);
        }else{
            search(tmp);
        }
    }
    return 0;

}