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#include<fstream>
//#include<iostream>
using namespace std;
ifstream cin("submultimi.in");
ofstream cout("submultimi.out");
int s[20],poz[20],n,p;
void afis(int k)
{
for(int i=1;i<=k;i++)
cout<<s[i]<<" ";
cout<<'\n';
}
void bac(int k)
{
for(int i=1;i<=n;i++){
if(!poz[i] && s[k-1]<i){
poz[i]=1;
s[k]=i;
afis(k);
bac(k+1);
poz[i]=0;
}
}
}
int main()
{
cin>>n;
bac(1);
return 0;
}