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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n, v[10];
void backtr(int k)
{
if(k > n)
{
for(int i = 1; i <= n; i++)
{
fout << v[i] << " ";
}
fout << "\n";
}
else
{
for(int i = 1; i <= n; i++)
{
bool ok = true;
for(int j = 1; j < k; j++)
{
if(v[j] == i)
{
ok = false;
}
}
if(ok)
{
v[k] = i;
backtr(k + 1);
}
}
}
}
int main()
{
fin >> n;
backtr(1);
return 0;
}