1 # include<iostream>
 2 # include<cstdio>
 3 # include<string.h>
 4 # include<algorithm>
 5 using namespace std;
 6 int cmp(const int a,const int b)
 7 {
 8     return a>b;
 9 }
10 int a[3005],hash[3000*3000/2];
11 int main()
12 {
13 
14     int n,m;
15     while(cin>>n>>m)
16     {
17         for(int i = 0;i < n;i++)
18         {
19             cin>>a[i];
20         }
21         int k = 0;
22         for(int j = 0;j < n -1;j++)
23         {
24             for(int v = j+1;v < n;v++)
25             {
26                 hash[k++] = a[j]+a[v];
27             }
28         }
29         sort(hash,hash+(n*(n-1))/2,cmp);
30         for(int i = 0;i < m;i++)
31         {
32             if(!i)
33             cout<<hash[i];
34             else
35             cout<<" "<<hash[i];
36         }
37         cout<<endl;
38     }
39 }