#include <stdio.h>

int main()
{
    int i,j,k;
    scanf("%d%d",&i,&j);
    int spot;
    int kk;
    
    for(k=i;k<=j;k++){
        if(k%3==0){
            printf("%d\n",k);
            continue;
        }
        kk=k;
        while(k>0){
            spot=k%10;
            if(spot==3){
                printf("%d\n",kk);
                break;
            }
            k/=10;
        }
    }
    return 0;
}