open System open System.Collections.Generic [] module Cin = let read f = stdin.ReadLine() |> f let reada f = stdin.ReadLine().Split() |> Array.map f let readChars() = read string |> Seq.toArray let readInts() = readChars() |> Array.map (fun x -> Convert.ToInt32(x.ToString())) [] module Cout = let writer = new IO.StreamWriter(new IO.BufferedStream(Console.OpenStandardOutput())) let print (s: string) = writer.Write s let println (s: string) = writer.WriteLine s let inline puts (s: ^a) = string s |> println let main() = let b = read string let n = read int64 let a = read string let yes = "SUCCESS" let no = "FAILURE" let bo = b |> Seq.filter (fun c -> c = 'o') |> Seq.length let ao = a |> Seq.filter (fun c -> c = 'o') |> Seq.length if b = "ooo" then if a = "ooo" then no else yes elif b = "xxx" then if a = "xxx" then no else yes else match n with | 0L -> if b = a then no else yes | 1L -> match bo = ao with | true -> if b.[..1] = a.[1..] then yes else no | _ -> yes | _ -> if bo = ao then no else yes |> puts () main() writer.Close() writer.Close()