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#include<fstream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n,t,v[100];
void fct(int x,int pre)
{
if(x>t)
{
for(int a=1;a<=t;a++)
{
fout<<v[a]<<" ";
}
fout<<endl;
}
else
for(int a=pre+1;a<=n;a++)
{
v[x]=a;
fct(x+1,a);
}
}
int main()
{
fin>>n;
for(int a=1;a<=n;a++)
{
t=a;
fct(1,0);
}
}