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#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n,sol[100];
void afis(){
for(int i=1;i<=n;i++)
fout<<sol[i]<<" ";
fout<<'\n';}
int cond(int k){
for(int i=1;i<k;i++)
if(sol[k]==sol[i])
return 0;
return 1;}
void Back(int k){
if(k>n)
afis();
else
for(int i=1;i<=n;i++){
sol[k]=i;
if(cond(k)==1)
Back(k+1);}}
int main(){
fin>>n;
Back(1);
return 0;}