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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n;
int v[10],folosit[10];
void back(int p)
{
if(p==n+1)
{
for(int i=1;i<=n;i++)
fout<<v[i]<<" ";
fout<<'\n';
return;
}
for(int i=1;i<=n;i++)
if(folosit[i]==0)
{
v[p]=i;
folosit[i]=1;
back(p+1);
folosit[i]=0;
}
}
int main()
{
fin>>n;
back(1);
return 0;
}