#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define ld long double
#define vf v[i].first
#define vs v[i].second
const ll MOD = 1e9 + 7;
void print(vector<int> &v) {
for (auto c:v)
cout << c << " ";
cout << "\n";
}
map<pair<int,int>,int>mp1;
map<pair<int,int>,int>mp2;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n,k;
ll a;
cin >> n >> k;
multiset<ll>v,temp;
for (int i = 0; i < n+k; ++i) {
cin >> a;
v.insert(a);
}
temp = v;
for (auto it = temp.begin(); it != temp.end(); ++it) {
bool flag = true;
temp.erase(it);
auto d = (--temp.end());
ll sum = *temp.begin()+*d;
d--;
int cnt = 2;
for (auto c = ++temp.begin(); cnt <= n/2; ++c) {
if (*c+*d!=sum) {
flag = false;
break;
}
d--;
cnt++;
}
if (flag)
break;
temp = v;
}
for (auto c:temp)
cout << c << " ";
}
