fun main() {
    var l = readLine()!!.toInt()
    var m = readLine()!!.toInt()
    var n = readLine()!!.toInt()

    var count = 0
    
    count += n % 25
    m += n / 25

    count += m % 4
    l += m / 4

    count += l % 10

    println(count)
}