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#include <bits/stdc++.h>
using namespace std;
int n,st[10];
bool viz[10];
ofstream fout("permutari.out");
void Afisare()
{
for(int i=1;i<=n;i++)
fout<<st[i]<<" ";
fout<<"\n";
}
void Backt(int top)
{
if(top==n+1) Afisare();
else
{
for(int i=1;i<=n;i++)
if(viz[i]==0)
{
viz[i]=1;
st[top]=i;
Backt(top+1);
viz[i]=0;
}
}
}
int main()
{
ifstream fin("permutari.in");
fin>>n;
fin.close();
Backt(1);
fout.close();
return 0;
}