Go: // ICPC 得点集計ソフトウェア
// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=1147&lang=jp
package main

import (
	"bufio"
	"fmt"
	"os"
	"sort"
	"strconv"
)

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)

	for	{
		n := nextInt(sc)
		if n == 0 { break }

		score_list := []int{}
		for i := 0; i < n; i++ {
			score_list = append(score_list, nextInt(sc))
		}

		// 最低点と最高点を取り除く (3 ≤ n ≤ 100)
		sort.Sort(sort.IntSlice(score_list))
		score_list = score_list[1:len(score_list)-1]

		// 平均点を求める
		sum := 0
		for _, score := range score_list {
			sum += score
		}
		fmt.Println(sum / len(score_list))
	}
}

func nextInt(sc *bufio.Scanner) int {
	sc.Scan()
	i, err := strconv.Atoi(sc.Text())
	if err != nil {
		panic(err)
	}
	return i
}

C++: #pragma GCC optimize ("O3")
#include <iostream>
#include <iomanip>
#include <istream>
#include <ostream>
#include <sstream>
#include <iterator>
#include <vector>
#include <algorithm>
#include <queue>
#include <deque>
#include <list>
#include <stack>
#include <map>
#include <unordered_map>
#include <set>
#include <bitset>
#include <utility>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <string>
#include <ctime>
#include <cctype>
#include <cstdlib>
#define IINF 1000000000
#define INF 9223372036854775807
#define MOD 998244353
#define mod 998244353
#define INT_MAX_ 2147483647
#define EPS (1e-10)
#define REP(i, a, n) for (ll i = a; i < (ll)(n); i++)
#define REPE(i, a, n) for (ll i = a; i <= (ll)(n); i++)
#define rep(i,n)for (ll i = 0; i < (ll)(n); i++)
#define Endl endl
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define mt make_tuple
#define eb emplace_back
#define mmax(x,y)(x>y?x:y)
#define mmin(x,y)(x<y?x:y)
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
#define all(x) (x).begin(),(x).end()
#define siz(x) (ll)(x).size()
#define PI acos(-1.0)
#define me memset
#define bit(n,k) ((n>>k)&1)
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;
typedef long double ld;
typedef pair<int,int>Pin;
typedef pair<ll,ll>Pll;
template<class T> using V=vector<T>;
template<typename T> using min_priority_queue = priority_queue<T, vector<T>, greater<T> >;
long long GCD(long long a, long long b) {return b?GCD(b,a%b):a;}
long long LCM(long long a, long long b) {return a/GCD(a,b)*b;}
int dx[4]={-1,0,1,0};
int dy[4]={0,-1,0,1};
int ddx[8]={-1,0,1,0,1,1,-1,-1};
int ddy[8]={0,-1,0,1,1,-1,1,-1};
ll cmp1(pair<ll,ll> a,pair<ll,ll> b){
        if(a.se!=b.se)
        return a.se<b.se;
        else
        return a.fi>b.fi;
}
//----------------------------------------------------------------------

//----------------------------------------------------------------------
int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    //-------------------------------  
    //ll begin_t=clock();
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    //-------------------------------
    int n;cin>>n;
    while(n){
        V<int>s(n);
        for(int i=0;i<n;i++)cin>>s[i];
        sort(all(s));
        int sum=0;
        for(int i=1;i<n-1;i++){
            sum+=s[i];
        }
        cout<<sum/(n-2)<<endl;
        cin>>n;
    }
    //-------------------------------  
    //fclose(stdin);
    //fclose(stdout);
    //ll end_t=clock();cout<<"time="<<end_t-begin_t<<"ms"<<endl;
    //-------------------------------
    return 0;
}
//----------------------------------------------------------------------

C++: #include<iostream>
#include<algorithm>
#include<vector>
using namespace std;

int main(){
        int n;
        int s[117];
        int chk;
        while(1){
                scanf("%d",&n);
                if(!n)
                        break;
                for(int i=0;i<n;i++){
                        scanf("%d",&s[i]);
                }
                sort(s,s+n);
            chk=0;
                for(int j=1;j<n-1;j++)
                        chk+=s[j];
                printf("%d\n",chk/(n-2));
        }
        return 0;
}

C++: #include <bits/stdc++.h>

using namespace std;

int n;
int s[100]={};
int count = 0;
int dai,syou;
int ans[1000]={};
int judge = 0;

int main()
{
    while(1){
        scanf("%d",&n);
        if(n == 0){
            break;
        }
        dai = 0;
        syou = 1000;
        for(int i=0;i<n;i++){
            scanf("%d",&s[i]);
            if(dai <= s[i]){
                dai = s[i];
            }
            if(syou >= s[i]){
                syou = s[i];
            }
        }
        int dai_count = 0;
        int syou_count = 0;
        for(int i=0;i<n;i++){
            if(s[i]==dai && dai_count ==0){
                dai_count=1;
                
            }else if(s[i] == syou && syou_count ==0){
                syou_count = 1;
            }else{
                ans[judge] += s[i];
            }
        }
        ans[judge] = ans[judge] / (n-2);
        
        judge++;

    }
    for(int i=0;i<judge;i++){
        cout << ans[i] << endl;
    }

    
    return 0;
}

C++: #include <iostream>
#include <iomanip>
#include <vector>
#include <valarray>
#include <map>
#include <set>
#include <list>
#include <queue>
#include <stack>
#include <bitset>
#include <utility>
#include <numeric>
#include <algorithm>
#include <functional>
#include <complex>
#include <string>
#include <sstream>

#include <cstdio>
#include <cstdlib>
#include <cctype>
#include <cstring>

// this require C++11
//#include <unordered_set>
//#include <unordered_map>
//#include <random>

using namespace std;

#define all(c) c.begin(),c.end()
#define repeat(i,n) for(int i=0;i<static_cast<int>(n);i++)
#define debug(x) #x << "=" << (x)
#define dump(x) cerr << debug(x) << " (L:" << __LINE__ << ")"<< endl

typedef long long ll;
typedef vector<int> vi;

template<typename T>
ostream& operator<<(ostream& os,vector<T>& vec){
    typename vector<T>::iterator it,endit=vec.end();
    os << "[";
    for(it=vec.begin();it!=endit;it++){
        os << " " << *it << ",";
    }
    os << "]";
    return os;
}

template<typename T>
T input(){
    T t;cin >> t;
    return t;
}

template<typename T>
vector<T> input(const int N){
    vector<T> v(N);
    repeat(i,N) cin >> v[i];
    return v;
}

int solve(int N){
    int av=0,in,mn,mx;
    for(int i=0;i<N;i++){
        cin >> in;
        av+=in;
        if(i==0){
            mn=in;
            mx=in;
        }
        if(mx<in)   mx = in;
        if(mn>in)   mn = in;
    }
    return (av-mx-mn)/(N-2);
}

int main(){
    int N;
    for(;;){
        cin >> N;
        if(N==0)
            break;
        cout << solve(N) << endl;
    }
	return 0;
}

C++: #include <bits/stdc++.h>
 
using namespace std;
typedef long long ll;
 
#define rep(i, n) for(int i=0; i<(n); ++i)

int main(void){
    int n, tmp;
    int ans = 0;
    while(cin >> n && n) {
        vector<int> in;
        rep(i, n) {
            cin >> tmp;
            in.push_back(tmp);
        }
        sort(in.begin(), in.end());
        ans = 0;
        for(int i=1; i<n-1; ++i) ans += in[i];
        cout << ans/(n-2) << endl;
    }
}

C++: #include<bits/stdc++.h>
typedef long long ll;
using namespace std;
int main(){
  ll N;
  ll s[1100];
  cin>>N;
  while(N){
  ll sum=0;
  for(ll i = 0; i < N; ++i){
      cin >> s[i];
  }
  sort(s,s+N);
  for(ll i = 1; i < N-1; ++i){
    sum+=s[i];
  }
  cout<<sum/(N-2)<<endl;
  cin>>N;
  }
}