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#include <bits/stdc++.h>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n, st[10005];
void Afis(int n)
{
for(int i = 1; i < n; i++)
fout << st[i] << " ";
fout << "\n";
}
void Back(int top)
{
if(top > 1)
Afis(top);
for(int i = st[top - 1] + 1; i <= n; i++)
{
st[top] = i;
Back(top + 1);
}
}
int main()
{
ios_base::sync_with_stdio(0);
fin.tie(0);
fout.tie(0);
fin >> n;
Back(1);
return 0;
}