package main

import (
	"fmt"
)

func main() {
	var l, m, n int
	fmt.Scan(&l, &m, &n)
	sum := l*100 + m*25 + n
	sum = sum % 1000
	l = sum / 100
	sum = sum % 100
	m = sum / 25
	sum = sum % 25
	n = sum
	fmt.Println(l + m + n)
}