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#include<fstream>
using namespace std;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int v[17],n;
void afis()
{
for(int i=1; i<=n; i++)
{
if(v[i]==1)
g<<i<<" ";
g<<'\n';
}
}
void backtracking(int k)
{
for(int i=1; i>=0; i--)
{
v[k]=i;
if(k==n)
afis();
else backtracking(k+1);
}
}
int main()
{
f>>n;
backtracking(1);
f.close();
g.close();
return 0;
}