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#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n,v[1000];
int verificare(int k){
for(int i=1;i<k;i++){
if(v[i]==v[k]){
return 0;
}
}
return 1;
}
void backtr(int k){
if(k==n+1){
for(int i=1;i<=n;i++){
fout<<v[i]<<" ";
}
fout<<"\n";
}
else{
for(int i=1;i<=n;i++){
v[k]=i;
if(verificare(k)==1){
backtr(k+1);
}
}
}
}
int main(){
fin>>n;
backtr(1);
}