// compile: g++ -o data data.cpp -std=gnu++20 -DLOCAL
// run: ./data < data.in
#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#ifdef LOCAL
#endif
#define sz(v) ((int)(v).size())
#define PV(v) for (int i=0;i<v.size();++i)cout<<v[i]<<" ";cout<<endl;
#define INTINF 9223372036854775807
#define int long long
#define MAXN 1010

using namespace std;

int32_t main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n; cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; ++i) cin >> a[i];
    PV(a);
    for (; n >= 2; --n) {
        vector<int> b; b.clear();
        for (int i = 0; i < n; ++i) {
            for (int j = i+1; j < n; ++j) {
                b.push_back(a[i] + a[j]);
            }
        }
        sort(b.begin(), b.end());
        b.resize(n-1);
        a = b;
        PV(a);
    }

    return 0;
}