open System

let rec solve (i : int) (sum : int) (l : int) (n : int) (ws : int array) =
    if i = n then n
    else 
        let s = sum + ws.[i]
        if s > l then l
        else solve (i + 1) (sum + ws.[i]) l n ws

[<EntryPoint>]
let main _ =
    let l  = stdin.ReadLine() |> int
    let n  = stdin.ReadLine() |> int
    let ws = stdin.ReadLine().Split(' ') |> Array.map int |> Array.sort
    printfn "%d" (solve 0 0 l n ws)
    0 // return an integer exit code