#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include <math.h>
 
int main(void){
int a,b;
char s[20];
int yes=0;
scanf("%d %d",&a,&b);
for(int i=a;i<=b;i++){
    snprintf(s,20,"%d",i);
    if(i%3==0){printf("%d\n",i);}
        else {
        for(int j=0;s[j]!='\0';j++){
            if(s[j]=='3'){printf("%d\n",i);break;}
        }
    }
}

}