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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n,m,v[20];
void afisare()
{
int j;
for(j=1;j<=m;j++)
{
cout<<v[j]<<" ";
}
cout<<"\n";
}
void func1 (int k)
{
int j;
if(k==m+1)
{
afisare();
}
for(j=1+v[k];j<=n-m+k;j++)
{
v[k]=j;
func1(k+1);
}
}
int main()
{
fin>>n;
for(m=1;m<=n;m++)
{
v[m]=m;
}
for(m=1;m<=n;m++)
{
func1(1);
}
cout<<v[0];
return 0;
}