package main

import "fmt"

func main() {
	var A, B int
	fmt.Scan(&A, &B)

	for i := A; i <= B; i++ {
		if i%3 == 0 {
			fmt.Println(i)
		} else {
			for j := i; j > 0; j /= 10 {
				if j%10 == 3 {
					fmt.Println(i)
					break
				}
			}
		}
	}
}