let n = stdin.ReadLine() |> int
let s = stdin.ReadLine()

let even x = x % 2 = 0

let f x =
    let mutable p = ""
    let mutable q = ""
    for i = 0 to n - 1 do
        if even i then
            p <- p + string s.[i]
        else
            q <- q + string s.[i]
    p + " " + q

if even n then
    printfn "Yes"
    f s |> printfn "%s"
else
    printfn "No"