#include <vector>
#include <iostream>
#include <fstream>
using namespace std;
int main(){
    int n;
    int suma;
    vector < int > v;
    vector < vector < int > > elemente_2;
    vector < vector < int > > elemente_4;
    ifstream fin( "loto.in" );
    ofstream fout( "loto.out" );
    fin >> n >> suma;
    for( int i = 0; i < n; i++ ){
        int x;
        fin >> x;
        v.push_back(x);
    }
    for( int i = 0; i < v.size(); i++ ){
        for( int j = 0; j < v.size(); j++ ){
            if( v[i]+v[j] < suma ){
                vector < int >  v1;
                v1.push_back(v[i]);
                v1.push_back(v[j]);
                elemente_2.push_back(v1);
            }
        }
    }
    int ok = 1;
    for( int i = 0; i < elemente_2.size() && ok == 1 ; i++ ){
        for( int j = 0; j < elemente_2.size() && ok == 1 ; j++ ){
            for( int k = 0; k < elemente_2.size() && ok == 1; k++ ){
                if( elemente_2[i][0] + elemente_2[i][1] + elemente_2[j][0] + elemente_2[j][1] + elemente_2[k][0] + elemente_2[k][1] == suma ){
                    fout << elemente_2[i][0] << " " << elemente_2[i][1] << " " << elemente_2[j][0] << " " << elemente_2[j][1] << " " << elemente_2[k][0] << " " << elemente_2[k][1];
                    ok = 0;
                }
            }
        }
    }
    if( ok == 1 ) fout << -1;
}