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Cod sursa(job #211912)
using namespace std;
#include <vector>
#include <set>
#define maxh 666013
set<int> H[maxh];
inline void insert(int v)
{
H[v%maxh].insert(v);
}
inline int find(int v)
{
return H[v%maxh].find(v) != H[v%maxh].end();
}
inline void sterge(int v)
{
H[v%maxh].erase(v);
}
int a[128], n, S;
int main()
{
int i, j, k;
int ii, jj, kk;
freopen("loto.in","r",stdin);
freopen("loto.out","w",stdout);
scanf("%d %d\n", &n, &S);
for(i=1; i<=n; ++i) scanf("%d ", a+i);
for(i=1; i<=n; ++i)
for(j=i; j<=n; ++j)
for(k=j; k<=n; ++k)
insert(a[i]+a[j]+a[k]);
for(i=1; i<=n; ++i)
for(j=i; j<=n; ++j)
for(k=j; k<=n; ++k)
if(find(S-a[i]-a[j]-a[k]))
{
printf("%d %d %d ", a[i], a[j], a[k]);
for(ii=1; ii<=n; ++ii)
for(jj=ii; jj<=n; ++jj)
for(kk=jj; kk<=n; ++kk)
if(a[ii]+a[jj]+a[kk]==S-a[i]-a[j]-a[k])
{
printf("%d %d %d\n", a[ii], a[jj], a[kk]);
return 0;
}
}
printf("-1\n");
return 0;
}