#include <fstream>
#include <algorithm>
using namespace std;
ifstream fin("loto.in");
ofstream fout("loto.out");
int r,n,v[104],a,s;
void cautbin(int x,int t)
{
    int p=1;
    int u=n;
    int mid;
    while(p<=u)
    {
        if(r==1)
            break;
        mid=(p+u)/2;
        a=v[mid]+x;
        if(t==6 && a==s)
        {
            r=1;
            fout<<v[mid]<<" ";
            return;
        }
        if(a<s && t<6)
        {
            cautbin(a,t+1);
            if(r==1)
                break;
            p=mid+1;
        }
        else
            u=mid-1;
    }
    if(r==1)
    {
        fout<<v[mid]<<" ";
    }
}
int main()
{
    fin>>n>>s;
    for(int i=1;i<=n;i++)
        fin>>v[i];
    sort(v+1,v+n+1);
    cautbin(0,1);
    if(r==0)
        fout<<-1;
    return 0;
}