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