module Main

let readInts () : int array = stdin.ReadLine().Split([|' '|]) |> Array.map int

type matrix = int[,]

let reorderColsByColPerm (s : matrix) (x : int) : matrix =
    let t = Array2D.copy s
    for r = 1 to Array2D.length1 s do
        for c = 1 to Array2D.length2 s do
           let v = Array2D.get s (r-1) (c-1)
           let cx = Array2D.get s (c-1) (x-1)
           Array2D.set t (r-1) (cx-1) v
    t

let reorderRowsByRowPerm (s : matrix) (y : int) : matrix =
    let t = Array2D.copy s
    for r = 1 to Array2D.length1 s do
        for c = 1 to Array2D.length2 s do
           let v = Array2D.get s (r-1) (c-1)
           let ry = Array2D.get s (y-1) (r-1)
           Array2D.set t (ry-1) (c-1) v
    t

let rec search (b : matrix) (k : int) (t : matrix) (v : int array) : bool =
    if k = 0 then
        b = t
    else
        let n = Array2D.length1 b
        seq { 1..n*2 }
        |> Seq.exists (fun op ->
            Array.set v (Array.length v - k) op
            let s = if op <= n
                       then reorderColsByColPerm t op
                       else reorderRowsByRowPerm t (op-n)
            search b (k-1) s v
        )
                
let cycle (p : int array) : int =
   let rec f (cnt : int) (t : int array) (w : int array) : int =
       p |> Array.iteri (fun i e -> Array.set t (e-1) (Array.get w i))
       if p = t then cnt else f (cnt+1) w t
   f 1 (Array.copy p) (Array.copy p)

let solve (n : int) (k : int) (a : matrix) (b : matrix) : int array =
    let ops = Array.zeroCreate k
    ignore <| search b k a ops
    let f ((ans, s) : int array * matrix) (op : int) : int array * matrix =
        let p = if op <= n then s[*,op-1] else s[op-1-n,*]
        let t = if op <= n then reorderColsByColPerm s op
                           else reorderRowsByRowPerm s (op-n)
        let cnt = cycle p - 1
        let z0 = if op <= n then op else (op-n)
        let tmp =
             seq { 1..cnt }
             |> Seq.scan (fun z _ -> Array.get p (z-1)) z0
             |> Seq.tail
             |> Seq.map (fun z -> if op <= n then z else (z+n))
             |> Seq.toArray
        (Array.append tmp ans, t)
    ops |> Array.fold f ([||],a) |> fst

[<EntryPoint>]
let main (_args: string array) : int =
    let [|n; k|] = readInts()
    let a = array2D [|for _ in 1..n -> readInts()|]
    let b = array2D [|for _ in 1..n -> readInts()|]
    let ans = solve n k a b
    printfn "%d" (Array.length ans)
    let f (op : int) : string =
        if op <= n then (sprintf "C %d" op)
                   else (sprintf "R %d" (op-n))
    ans |> Array.map f |> Array.iter (printfn "%s")
    0