let doIt () =
    let L = stdin.ReadLine () |> int
    let M = stdin.ReadLine () |> int
    let N = stdin.ReadLine () |> int

    let total = L * 100 + M * 25 + N
    let c100 = (total % 1000) / 100
    let c25 = (total % 100) / 25
    let c1 = (total % 25)

    c100 + c25 + c1 |> printfn "%d"

doIt ()