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

int main(void)
{
	int a,b;
	scanf("%d %d",&a,&b);
	int n=b-a+1;
	int *AB=calloc(n,sizeof(int));
	for(int i=0;i<n;i++){
		AB[i]=a;
		a++;
		}

	for(int i=0;i<n;i++) {
		if(AB[i]%3==0)
			printf("%d\n",AB[i]);
		else if(AB[i]/10==3)
			printf("%d\n",AB[i]);
		else if(AB[i]%(int)pow(10,1)==3)
			printf("%d\n",AB[i]);
		}
	free(AB);
	return 0;
}