#include <stdio.h>
#include <algorithm>
#include <deque>
using namespace std;
using ll = long long;

int main() {
	int a, b, v;
	scanf("%d %d", &a, &b);

	for (int i = a; i <= b; i++) {
		v = i;
		if (v % 3 == 0) {
			printf("%d\n", i);
			continue;
		}
		while (v != 0) {
			if (v % 10 == 3) {
				printf("%d\n", i);
				break;
			}
			v /= 10;
		}
	}
}