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#include<iostream>
#include<fstream>
using namespace std;
int sol[1000];
int n;
int uz[10000];
void afisare(int n){
for(int i=1;i<=n;i++)
cout<<sol[i]<<" ";
cout<<endl;
}
void back(int nr){
if(nr<=n)
{
for(int i=1;i<=n;i++){
if(!uz[i] && i>sol[nr-1]) {
uz[i]=1;
sol[nr]=i;
afisare(nr);
back(nr+1);
uz[i]=0;
}
}
}
}
int main(){
cin>>n;
sol[0]=0;
back(1);
return 0;
}