package main

import "fmt"
import "strings"

func main() {
	var min, max int64
	fmt.Scanf("%v %v", &min, &max)
	for v := min; v <= max; v++ {
		if v%3 == 0 {
			fmt.Printf("%d\n", v)
			continue
		}
		s := fmt.Sprintf("%d", v)
		if strings.Contains(s, "3") {
			fmt.Printf("%d\n", v)
			continue
		}
	}
}