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