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++: #include <iostream>
#include <vector>
#include <list>
#include <set>
#include <string>
#include <cmath>
#include <algorithm>
#include <map>

using namespace std;
using ll=long long;
using vi=vector<int>;
using vll=vector<ll>;
using pii=pair<int,int>;

#define REP(i,a) for(int i=0;i<a;i++)
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define rREP(i,a) for(int i=(a)-1;i>=0;i--)
#define rFOR(i,a,b) for(int i=(a)-1;i>=(b);i--)
#define out(S) cout<<(S)<<endl;
#define beginend(v) (v).begin(),(v).end()
#define IfOut(condition,text) if(condition){out(text);return 0;}
#define IfOutElse(condition,if_text,else_text) if(condition){out(if_text);return 0;}else{out(else_text);return 0;}
#define mod(s) ((s)%(ll)(1e9+7))
ll modpow(ll i, ll j) { ll tmp = 1; while (j) { if (j % 2)tmp = mod(tmp*i); i = mod(i*i); j /= 2; }return tmp; }
#define divmod(a,b) (mod(a*modpow((ll)b,(ll)(1e9+5))))
#define pb(i) push_back(i)
#define fst first
#define snd second
#define Foreach(item,collection) for(auto item:collection)
#define INF 1e10
#define removeAll(vec,deleg) auto itr=remove_if(beginend(vec),deleg);vec.erase(itr,vec.end());
void removeAt(string& s, int index) { s.erase(index, 1); }
template<typename T> void removeAt(vector<T>& v, int index) { v.erase(v.begin() + index); }
ll manhattanDistance(ll x1, ll y1, ll x2, ll y2) { return (abs(x2 - x1) + abs(y2 - y1)); }
vector<ll> sieveOfEratosthenes(int max) {ll prime;double sqrtmax = sqrt(max);vector<ll> primeVec, searchVec;FOR(i, 2, max + 1) searchVec.push_back(i);do{prime = searchVec[0];primeVec.push_back(prime);auto itr = remove_if(beginend(searchVec), [=](ll x)->bool {return x%prime == 0; });searchVec.erase(itr, searchVec.end());} while (prime < sqrtmax);primeVec.reserve(primeVec.size() + searchVec.size());primeVec.insert(primeVec.end(), beginend(searchVec));return primeVec;}
ll sum(vi v) {ll sum=0;Foreach(i,v){sum+=i;}return sum;}
#define ShowAll(v) Foreach(i,v) out(i);

void solve(){
    int N;
    vi ans;
    while (cin>>N,N)
    {
        vi a(N);
        REP(i,N){
            cin>>a[i];
        }
        sort(beginend(a));
        ll s=sum(a);
        s-=a.front();
        s-=*--a.end();
        ans.pb(s/(N-2));
    }
    Foreach(i,ans) out(i);
}

int main(){


    solve();
    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;

#define rep(i,n) for(int i=0;i<n;i++)
#define REP(i,s,n) for(int i=(s);i<=(n);i++)
#define repr(i,n) for(int i=n-1;i>=0;i--)
#define REPR(i,s,n) for(int i=(s);i>=(n);i--)
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
#define Eunique(v) v.erase(unique(all(v)),v.end())
#define Eback(s) s.erase(s.end()-1,s.end())
#define rev(v) reverse(all(v))
#define minvec(v) *min_element(all(v))
#define maxvec(v) *max_element(all(v))
#define sumvec(v) accumulate(all(v),0)
#define mapmax(v) v.rbegin()->first
#define mapmin(v) v.begin()->first
#define pb push_back
#define pf push_front
#define mod 1000000007
#define m_p make_pair
#define DOUBLE fixed << setprecision(15)
#define OK puts("OK")
#define OK1 puts("OK1")
#define OK2 puts("OK2")
#define SIZE(s) (int)s.size()
#define INF ((1LL<<62)-(1LL<<31))
#define zero(x,n) setw(x) << setfill('0') << n

typedef long long ll;

typedef vector<int> vi;
typedef vector<long long> vll;
typedef vector<double> vd;
typedef vector<char> vc;
typedef vector<string> vs;

typedef vector<vi> vvi;
typedef vector<vll> vvll;
typedef pair<ll,ll> pll;
typedef pair<int,int> pii;
typedef vector<pair<int,int>> vpii;
typedef vector<pair<ll,ll>> vpll;

const double pi = acos(-1.0);

template<class A, class B>
ostream& operator<<(ostream& ost, const pair<A, B>&p) {
	ost << "{" << p.first << ", " << p.second << "} ";
	return ost;
}

template<class T>
ostream& operator<<(ostream& ost, const vector<T>&v) {
	ost << "{";
	for (int i = 0; i<(int)v.size(); i++) {
		if (i)ost << " ";
		ost << v[i];
	}
	ost << "} \n";
	return ost;
}

template<class A, class B>
ostream& operator<<(ostream& ost, const map<A, B>&v) {
	ost << "{";
	for (auto p:v) {
		ost << "{" << p.first << ", " << p.second << "} ";
	}
	ost << "} ";
	return ost;
}

template<class T>
inline bool chmax(T& a, T b){if(a<b){a=b;return true;} return false;}

template<class T>
inline bool chmin(T& a, T b){if(a>b){a=b;return true;} return false;}

ll gcd(ll x, ll y) {return __gcd(x,y);}
ll lcm(ll x, ll y) {return x/__gcd(x,y)*y;}

int main()
{
	ll n;
	vll v;
	while(1){
		ll ma=0,mi=INF,sum=0,a;
		cin >> n;
		if(n==0) break;
		rep(i,n){
			cin >> a;
			sum+=a;
			chmin(mi,a);
			chmax(ma,a);
		}
		v.pb((sum-mi-ma)/(n-2));
	}
	for(auto& e:v) cout << e << endl;
	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
  int p;
  int s[1000];
  int sum;
  while(1){
    sum=0;
    cin>>p;
    if(p==0) break;
    for(int i=0;i<p;i++){
      cin>>s[i];
      sum+=s[i];
    }
    sort(s,s+p);
    for(int j=0;j<p;j++){
      /* cout<<s[j]<<endl;*/
    }
    cout<<(sum-s[0]-s[p-1])/(p-2)<<endl;
  }
  return 0;
}

C++: #include<iostream>
#include<algorithm>
#include<math.h>
#include<queue>
#include<vector>
#include<climits>
#include<map>
#include<string>
#include<functional>
#include<iomanip>

using namespace std;
typedef long long ll;

ll n[21] = {}, s[21][101] = {}, sum[21] = {}, ans[21] = {}, num = 20;

int main() {
	for (int i = 1; i <= 20; i++) {
		cin >> n[i];
		if (n[i] == 0) {
			num = i - 1;
			break;
		}
		for (int j = 1; j <= n[i]; j++)cin >> s[i][j];
		stable_sort(s[i], s[i] + n[i] + 1);
		for (int j = 2; j < n[i]; j++)sum[i] += s[i][j];
		ans[i] = sum[i] / (n[i] - 2);
	}
	for (int i = 1; i <= num; i++)cout << ans[i] << endl;
	return 0;
}

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

int main()
{
	int n;
	while(cin>>n){
		if(n==0) return 0;

		vector<int> V;
		for(int i=0;i<n;i++){
			int t;
			cin>>t;
			V.push_back(t);
		}
		sort(V.begin(),V.end());

		int ans=0;
		for(int i=1;i<V.size()-1;i++)
			ans+=V[i];
		cout<<ans/(n-2)<<endl;

	}
}