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#include <fstream>
using namespace std;
int n,sol[100],k;
ifstream f("permutari.in");
ofstream g("permutari.out");
bool ok[100]={false};
void afis(){
int i;
for(i=1;i<=n;++i)
g<<sol[i]<<" ";
g<<'\n';
}
void back(int k){
int i;
if(k>n) afis();
else for(i=1;i<=n;++i){
if(!ok[i]){
ok[i]=true;
sol[k]=i;
back(k+1);
ok[i]=false;
}
}
}
int main()
{
f>>n;
back(1);
return 0;
}