open System
type Sol() =
    member this.Solve() = 
        let (A1,A2,A3) = stdin.ReadLine().Split() |> Array.map int |> fun ss -> (ss.[0],ss.[1],ss.[2])
        let isKadomatsu a b c =
            a <> b && b <> c && c <> a && ( (a<b && b>c) || (a>b && b<c) )
        let max = A1::A2::A3::[] |> Seq.max
        let mutable sum = 0
        for i in 1..max do
            sum <- sum + (if (isKadomatsu (A1%i) (A2%i) (A3%i)) then 1 else 0)
        let ans = if (isKadomatsu A1 A2 A3) then "INF" else (string sum)
        printfn "%s" ans

let mySol = new Sol()
mySol.Solve()