#include<stdio.h>

int main(void){

int i,j;
int A,B;
char str[10];
int counter=0;

scanf("%d%d",&A,&B);

for(i=A;i<=B;i++){

	sprintf(str,"%d",i);

	if(i%3==0)
	printf("%d\n",i);

	else{
		for(j=0;str[j]!='\0';j++){
		if(str[j]=='3')
			counter++;
		}
		if(counter>0){
			printf("%d\n",i);
		}
		counter=0;
	}	
		
}
	
return 0;

}