#include<stdio.h>

int main(void){
	int a,b,i,y,k;
	scanf("%d%d",&a,&b);
	for(i = a;i <= b;i++){
		y = 0;
		k = i;
		if(!(k%3)){y = 1;}
		while(k){
			if(k%10 == 3){y = 1;}
			k/=10;
		}
		if(y){printf("%d\n",i);}
	}
	return 0;
}