let [| n; _ |] =
    stdin.ReadLine().Split()
    |> Array.map int

let s = stdin.ReadLine()

let table = [|
    for _ in 0..n ->
        Array.create (n + 1) 1
|]

table.[n].[0] <- 0

let mutable x = 0
let mutable y = n

for c in s do
    match c with
    | 'U' -> y <- y - 1
    | 'D' -> y <- y + 1
    | 'L' -> x <- x - 1
    | 'R' -> x <- x + 1
    | _ -> ()
    
    table.[y].[x] <- 0

table
|> Array.iter (
    Array.map string
    >> String.concat " "
    >> printfn "%s"
)