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#include <iostream>
#include <fstream>
using namespace std;
int n, a[9];
ofstream fout("permutari.out");
void Afisare()
{
for(int i = 1; i <= n; i++)
fout<<a[i]<<" ";
fout<<"\n";
}
int continuare(int k)
{
int i;
for(i = 1; i<= k-1; i++)
if(a[k] == a[i]) return 0;
return 1;
}
void Back(int k)
{
int i;
if(k == n+1) Afisare();
else for(i = 1; i<= n; i++)
{
a[k] = i;
if(continuare(k)) Back(k+1);
}
}
int main()
{
ifstream fin("permutari.in");
fin>>n;
Back(1);
fin.close();
fout.close();
return 0;
}