#include <cstdio>
#include <math.h>
bool three(int n){
	int a = pow(10, (int)log10(n)), m=n;
	while(a!=0){
		if(m/a == 3)	return true;
		m %= a;
		a /= 10;
	}
	return false;
}
int main(){
	int a, b;
	scanf("%ld %ld", &a, &b);
	for(int i=a; i<=b; i++){
		if(i%3==0 || three(i))	printf("%d\n", i);;
	}
}