let t = stdin.ReadLine() |> int

for i = 0 to t - 1 do
    let k = stdin.ReadLine() |> int

    match k with
    | _ when k <= 9 -> k
    | _ when k <= 18 -> (k - 9) * 10 + 9
    | _ when k = 19 -> 8605
    | _ when k <= 21 -> 8700 + k - 15
    | _ when k = 22 -> 9706
    | _ when k <= 24 -> 9800 + k - 17
    | _ -> -1
    |> printfn "%d"