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#include <iostream>
#include <fstream>
using namespace std;
ifstream in("permutari.in");
ofstream out("permutari.out");
short n,st[25],viz[25];
void Afisare(){
int i;
for(i=1;i<=n;++i){
out<<st[i]<<' ';
}out<<'\n';
}
void Back(int t){
int i;
if(t==n+1) Afisare();
else for(i=1;i<=n;++i){
if(viz[i]==0){
viz[i]=1;
st[t]=i;
Back(t+1);
viz[i]=0;
}
}
}
int main()
{
in>>n;
Back(1);
return 0;
}