#include <fstream>
using namespace std;
ifstream f("loto.in");
ofstream g("loto.out");
int n,i,j,t,ok,st,dr,m,S,k;
struct sume
{
    int i,j,t,s;
}v[100005];
int a[105];
int main()
{
    f>>n>>S;
    for(i=1;i<=n;++i) f>>a[i];
    for(i=1;i<=n;++i)
    {
        for(j=i;j<=n;++j)
        {
            for(t=j;t<=n;++t)
            {
               ++k;
               v[k].s=a[i]+a[j]+a[t];
               v[k].i=i;
               v[k].j=j;
               v[k].t=t;
            }
        }
    }
    ok=0;
    for(i=1;i<=k&&ok==0;++i)
    {
        st=1; dr=k;
        while(st<=dr&&ok==0)
        {
            m=st+(dr-st)/2;
            if(v[m].s==S-v[i].s)
            {
                ok=1;
                g<<v[i].i<<" "<<v[i].j<<" "<<v[i].t<<" "<<v[m].i<<" "<<v[m].j<<" "<<v[m].t<<'\n';
            }
            else if(v[m].s>S-v[i].s) dr=m-1;
            else st=m+1;
        }
    }
    if(ok==0) g<<"-1"<<'\n';
    return 0;
}