package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func nextInt(sc *bufio.Scanner) int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}
	return i
}

func isThreeNumber(num int) bool {
	if num%3 == 0 {
		return true
	}
	for j := num; j > 0; j /= 10 {
		if j%10 == 3 {
			return true
		}
	}
	return false
}

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	a := nextInt(sc)
	b := nextInt(sc)
	for i := a; i <= b; i++ {
		if isThreeNumber(i) {
			fmt.Println(i)
		}
	}
}