#include<stdio.h>
int main(){
	int _1000yenBill, _100yenCoin, _25yenCoin, _1yenCoin;
	scanf("%d", &_100yenCoin);
	printf("");
	scanf("%d", &_25yenCoin);
	printf("");
	scanf("%d", &_1yenCoin);
	if(_1yenCoin >= 25){
		_25yenCoin += _1yenCoin/25;
		_1yenCoin %= 25;
	}
	if(_25yenCoin >= 4){
		_100yenCoin += _25yenCoin/4;
		_25yenCoin %= 4;
	}
	if(_100yenCoin >= 10){
		_1000yenBill += _100yenCoin/10;
		_100yenCoin %= 10;
	}
	printf("%d", _1yenCoin + _25yenCoin + _100yenCoin);
	return 0;
}