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#include <bits/stdc++.h>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n, x[20];
void afis()
{
for(int i = 1 ; i <= n ; i++)
if(x[i] == 1)
fout << i << " " ;
fout << '\n';
}
void back(int k)
{
if(k > n )
afis();
else
for(int i = 1 ; i >= 0 ; i--)
{
x[k] = i;
back(k+1);
}
}
int main()
{
fin >> n;
back(1);
return 0;
}