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#include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int n,v[10],k,fr[10];
void generate (int n,int len)
{
if (len==n+1)
{
for (int i=1;i<=n;i++) g<<v[i]<<' ';
g<<'\n';
return;
}
for (int i=1;i<=n;i++)
if (fr[i]==0)
{
fr[i]=1;
v[len]=i;
generate(n,len+1);
fr[i]=0;
}
}
int main()
{
f>>n;
generate(n,1);
f.close();
g.close();
return 0;
}