let readString() = stdin.ReadLine()
let readStringArray() = stdin.ReadLine().Split(' ');
let readInt() = readString() |> int
let readIntArray() = readStringArray() |> Array.map (fun x -> int x)

let a, b = readIntArray() |> fun x -> (x.[0], x.[1])

(a + b) % 24
|> printfn "%d"