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