package yukicoder;

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {	
		Scanner sc = new Scanner(System.in);
		int total = 0;
	    int l = sc.nextInt();
	    int m = sc.nextInt();
	    int n = sc.nextInt();
	    int subTotal1=0;
	    int subTotal25=0;
	    int subTotal100=0;
	    int mod;
	    mod = n % 1000;
	    subTotal100 += mod / 100;
	    mod %= 100;
	    subTotal25 += mod / 25;
	    mod %= 25;
	    subTotal1 += mod;
	    mod = m % 40;
	    subTotal100 += mod / 4;
	    mod = m % 4;
	    subTotal25 += mod;
	    subTotal100 += l % 10;
	    total += subTotal1;
	    subTotal100 += subTotal25 / 4;
	    total += subTotal25 % 4;
	    total += subTotal100 % 10;
	    System.out.println(total);
	}

}