let n, m = Scanf.scanf "%d %d\n" @@ fun a b -> a, b
let op   = Scanf.scanf "%s " (fun a -> a)
let brr  = Array.to_list (Array.init m (fun _ -> Scanf.scanf "%d " (fun x -> x)))
let arr  = Array.to_list (Array.init n (fun _ -> Scanf.scanf "%d\n" (fun x -> x)))
let h = if op = "+" then (fun x y -> x + y) else (fun x y -> x * y)
let rec g h a blst =
    match blst with
        | [] -> []
        | head :: tail -> (h head a) :: g h a tail
let rec f alst blst =
    match alst with
        | [] -> []
        | head :: tail -> g h head blst :: f tail blst
let ans = f arr brr
let rec string_of_list lst =
    match lst with
        | [] -> ""
        | head :: tail -> (string_of_int head) ^ " " ^ string_of_list tail
let () = List.iter (fun lst -> print_endline (string_of_list lst)) ans