题目链接：

A. Bear and Five Cards

//#include <bits/stdc++.h>
#include <vector>
#include <iostream>
#include <queue>
#include <cmath>
#include <map>
#include <cstring>
#include <algorithm>
#include <cstdio>

using namespace std;
#define Riep(n) for(int i=1;i<=n;i++)
#define Riop(n) for(int i=0;i<n;i++)
#define Rjep(n) for(int j=1;j<=n;j++)
#define Rjop(n) for(int j=0;j<n;j++)
#define mst(ss,b) memset(ss,b,sizeof(ss));
typedef long long LL;
template<class T> void read(T&num) {
    char CH; bool F=false;
    for(CH=getchar();CH<'0'||CH>'9';F= CH=='-',CH=getchar());
    for(num=0;CH>='0'&&CH<='9';num=num*10+CH-'0',CH=getchar());
    F && (num=-num);
}
int stk[70], tp;
template<class T> inline void print(T p) {
    if(!p) { puts("0"); return; }
    while(p) stk[++ tp] = p%10, p/=10;
    while(tp) putchar(stk[tp--] + '0');
    putchar('\n');
}

const LL mod=1e9+7;
const double PI=acos(-1.0);
const LL inf=1e14;
const int N=1e5+15;

int a[10],flag[200];
int main()
{
    int sum=0;
    for(int i=1;i<=5;i++)read(a[i]),sum+=a[i],flag[a[i]]++;
    int ans=sum;
    for(int i=1;i<=5;i++)
    {
        if(flag[a[i]]>1&&flag[a[i]]<4)
        ans=min(ans,sum-flag[a[i]]*a[i]);
        else if(flag[a[i]]>3)
        {
            ans=min(ans,sum-3*a[i]);
        }
    }
    cout<<ans<<"\n";


        return 0;
}