package main

import (
	"fmt"
	"strconv"
)

func includesThree(num int) bool {
	str := strconv.Itoa(num)
	for i := range str {
		if str[i] == '3' {
			return true
		}
	}
	return false
}

func main() {
	var A, B int
	fmt.Scan(&A, &B)
	for i := A; i <= B; i++ {
		if i%3 == 0 {
			fmt.Println(i)
		} else if includesThree(i) {
			fmt.Println(i)
		}
	}
}