#pragma GCC target ("avx2")
#pragma GCC optimize ("Ofast")
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define F first
#define S second
#define pb push_back
const int N = 1e6, NN=26;
const int mod=1e9+7;
//int gcd(int a, int b) { if (b == 0) return a; else return gcd(b, a % b); }
//int lcm(int a, int b) { return a / gcd(a, b) * b; }
//int binpow(int a,int b){if(!b)return 1; if(b&1)return a*binpow(a,b-1)%mod; int x=binpow(a,b/2); return x*x%mod;}
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n, k;
cin >> n >> k;
int a[n+k+1];
if(n+k<=18){
for(int i=0;i<n+k;i++) cin >> a[i];
for(int mask=0;mask<(1<<(n+k));mask++){
vector < int > v;
for(int i=0;i<n+k;i++){
if(((mask>>i)&1)) v.pb(a[i]);
}
if(n!=v.size()) continue;
bool b=0;
for(int i=0;i<v.size()/2;i++){
if(v[i]!=v[v.size()-i-1]) b=1;
}
if(b==0){
for(auto to : v) cout << to << ' ';
return 0;
}
}
}
for(int i=1;i<=n+k;i++) cin >> a[i];
if(k==1){
int l=1, r=n+k-1;
bool b=0;
int sum=a[l]+a[r];
while(l<r){
if(a[l]+a[r]==sum){
l++;
r--;
}
else{ b=1; break;}
}
if(b==0){
for(int i=1;i<n+k;i++) cout << a[i] << ' ';
return 0;
}
l=2; r=n+k; sum=a[l]+a[r]; b=0;
while(l<r){
if(a[l]+a[r]==sum){ l++; r--;}
else{ b=1; break;}
}
if(b==0){
for(int i=2;i<=n+k;i++) cout << a[i] << ' ';
return 0;
}
l=1; r=n+k; sum=a[l]+a[r]; b=0;
while(l<r){
if(a[l]+a[r]==sum){ l++; r--;}
else{ b=1; break;}
}
if(b==0){
for(int i=1;i<=n+k;i++){
if((n+k+1)/2==i) continue;
cout << a[i] << ' ';
}
return 0;
}
int pos1=0, pos2=0;
l=1; r=n+k; sum=a[l]+a[r]; b=0;
while(l<=r){
if(a[l]+a[r]==sum){ l++; r--;}
else{
pos1=l;
pos2=r;
break;
}
}
l=pos1; r=pos2-1;
while(l<=r){
if(a[l]+a[r]==sum){l++; r--;}
else{ b=1; break;}
}
if(b==0){
for(int i=1;i<=n+k;i++){
if(i==pos2) continue;
cout << a[i] << ' ';
}
return 0;
}
for(int i=1;i<=n+k;i++){
if(i==pos1) continue;
cout << a[i] << ' ';
}
}
else{
while(true){
random_shuffle(a+1, a+n+k+1);
vector < int > v;
for(int i=1;i<=n;i++) v.pb(a[i]);
sort(v.begin(), v.end());
bool bo=0;
int sum=v[0]+v[v.size()-1];
for(int i=0;i<v.size()/2;i++){
if(v[i]+v[v.size()-i-1]!=sum){bo=1; break;}
}
if(bo==0){
for(auto to : v) cout << to << ' ';
return 0;
}
}
}
}
