let rec sum(x:string, i:int, s:int)=
    if i<x.Length then
        if x.[i] = '-' then
            sum(x, i+2, s-int(int(x.[i+1])-48))
        else sum(x, i+2, s+int(int(x.[i+1])-48))
    else s
let main() =
    seq { for i in 1 .. stdin.ReadLine()|> int do yield stdin.ReadLine() }
    |> Seq.iter (fun x -> System.Console.WriteLine(sum(x, 1, int(x.[0])-48)))
main()