let solve a b c =
    if a + b = c then
        "Correct"
    else
        "Incorrect"

let () =
    let a, b, c =
        stdin.ReadLine()
        |> fun s -> s.Split()
        |> Array.map int
        |> fun arr -> (arr.[0], arr.[1], arr.[2])

    solve a b c |> printfn "%s"