import java.util.Scanner
object no32{
    def main(args:Array[String]):Unit={
        val scan:Scanner = new Scanner(System.in)
        var l = scan.nextInt
        var m = scan.nextInt
        var n = scan.nextInt

        m += n/25
        n %= 25

        l += m/4
        m %= 4

        l %= 10
        println(n+m+l)

    }
}