#include <stdio.h>
int main(void){
    
    int A,B,i,t,f;
    scanf("%d%d",&A,&B);
    for(i=A;i<=B;i++){
        f=0;
        if(i%3==0)f=1;
        for(t=i;t!=0;t/=10)if(t%10==3)f=1;
        if(f==1)printf("%d",i);
    }
    
   
    
    return 0;
}