open System
open System.Text

let isThree n:int =
    let mutable num = n
    let mutable ret = 0
    while num > 0 do
        if num % 10 = 3 then
            num <- 0
            ret <- 1
        
        num <- num / 10
    ret
    
      
[<EntryPoint>]
let main args =    
    let IN = Console.ReadLine().Split(' ')
    let A, B = Int32.Parse(IN.[0]), Int32.Parse(IN.[1])
    
    for x = A to B do
        if x % 3 = 0 || isThree(x) = 1 then
            printfn "%d" x
    done
        
    0