package main

import (
	"fmt"
	"strconv"
)

func isMatch(n int) bool {
	if n%3 == 0 {
		return true
	}

	s := strconv.Itoa(n)
	for i := 0; i < len(s); i++ {
		if s[i] == '3' {
			return true
		}
	}
	return false
}

func main() {
	var a, b int
	fmt.Scanf("%d %d", &a, &b)

	for i := a; i <= b; i++ {
		if isMatch(i) {
			fmt.Println(i)
		}
	}
}