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