package main

import (
	"fmt"
	"strconv"
	"strings"
)

func scan() (int, int) {
	var a, b int
	fmt.Scan(&a, &b)
	return a, b
}

func main() {
	a, b := scan()
	// a, b := 10, 20
	for i := a; i <= b; i++ {
		if i%3 == 0 {
			fmt.Println(i)
		} else if strings.Contains(strconv.Itoa(i), "3") {
			fmt.Println(i)
		}
	}
}