#include<stdio.h>
#include<math.h>

int main(void){
	int i,j,a,b,flag,keta;

	scanf("%d%d",&a,&b);

	for(i=a;i<=b;i++){
		flag = 0;
		keta = (int)log10(i);

		if(i%3 == 0) flag++;
		for(j=1;j<=pow(10,keta);j*=10) if(i/j%10 == 3) flag++;

		if(flag != 0) printf("%d\n",i);
	}

	return 0;
}