#include<stdio.h>
#include<algorithm>
using namespace std;
int main(){
	int a,b,c;scanf("%d%d%d",&a,&b,&c);
	b+=c/25;
	c%=25;
	a+=b/4;
	b%=4;
	a%=10;
	printf("%d\n",a+b+c);
}