package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func main() {
	sum := 0
	coins := 0
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanLines)

	sc.Scan()
	n_100, _ := strconv.Atoi(sc.Text())
	sum += n_100 * 100

	sc.Scan()
	n_25, _ := strconv.Atoi(sc.Text())
	sum += n_25 * 25

	sc.Scan()
	n_1, _ := strconv.Atoi(sc.Text())
	sum += n_1

	sum %= 1000
	coins += sum / 100
	sum %= 100
	coins += sum / 25
	sum %= 25
	coins += sum

	fmt.Println(coins)
}