main.fs

module main

let rand = new System.Random()

let swap (a: _[]) x y =
    let tmp = a.[x]
    a.[x] <- a.[y]
    a.[y] <- tmp

let shuffle a =
    Array.iteri (fun i _ -> swap a i (rand.Next(i, Array.length a))) a

let main() =
   let langs = [|"Swift"; "F#"; "Rust"; "Nim"; "Go"; "Scala"; "R"; "Julia"; "Kotlin"; "Ruby"; "Typescript"; "C#"|]
   shuffle langs
   langs |> Seq.iter (printfn "%s")

main()