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