View Code of Problem 612

#include<iostream>
#include<string>
#include<algorithm>
#include<iomanip>
#include<cstdio>
using namespace std;
int main()
{
	int i,n;
	int a[6];
	while(cin>>a[0] )
	{
		double sum=0;
		for( i=1;i<6;i++ )cin>>a[i];
		sort(a,a+6);
		for(i=1;i<=4;i++ )
		{
			sum+=a[i];
		}
			printf("%g\n",sum/4);
	}	
	return 0;
}