/*
 * chokin.c
 *
 *  Created on: 2016/07/08
 *      Author: admin
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void){
	int hyaku=0;
	int nijugo=0;
	int ichi=0;
	int satsu=0;
	int sum=0;
	char str[1000];

	//100円硬貨
	fgets(str, sizeof(str), stdin);
	hyaku = atoi(str);

	//25円硬貨
	fgets(str, sizeof(str), stdin);
	nijugo = atoi(str);

	//1円硬貨
	fgets(str, sizeof(str), stdin);
	ichi = atoi(str);

	if(ichi > 25){
		nijugo += ichi / 25;
		ichi = ichi % 25;
	}

	if(nijugo > 4){
		hyaku += nijugo / 4;
		nijugo = nijugo % 4;
	}

	if(hyaku > 10){
		hyaku = hyaku % 10;
	}

	sum = hyaku + nijugo + ichi;
	printf("%d\n", sum);

	return 0;
}