#include<stdio.h>
int main()
{
	int L,M,N;
	int a,b,c,d;
	int sum;
	
	scanf("%d",&L);
	scanf("%d",&M);
	scanf("%d",&N);
	
	sum=100*L+25*M+N;
	
	a=sum/1000;
	b=(sum%1000)/100;
	c=(sum%100)/25;
	d=sum%25;
	
	printf("%d",a+b+c+d);
	
	return 0;
}