open System

let rec modPow(b: Int64, ex: Int64, mo: Int64) =
    if ex = 0 then 1L
    elif ex % 2L = 0 then
        let half = modPow(b, (ex / 2L), mo)
        (half * half) % mo
    else
        (b * modPow(b, (ex - 1L), mo)) % mo


[<EntryPoint>]
let yuki16 args : int =
    let [| x ; N |] = () |> stdin.ReadLine |> (fun it -> it.Split ' ') |> Array.map Int64.Parse
    ()
    |> stdin.ReadLine
    |> (fun it -> it.Split ' ')
    |> Array.map Int64.Parse
    |> Array.map (fun l -> modPow(x, l, 1000003L))
    |> Array.sum
    |> stdout.WriteLine
    0