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# include <fstream>
using namespace std;
ifstream in("permutari.in");
ofstream out("permutari.out");
int n;
int v[9];
int verifica(int k)
{
int i;
for (i=1;i<=k-1;i++) if (v[i]==v[k]) return 0;
return 1;
}
void gen(int k)
{
int i;
if (k==n+1)
{
for (i=1;i<=n;i++) out<<v[i]<<' ';out<<'\n';
return;
}
for (i=1;i<=n;i++)
{
v[k]=i;
if (verifica(k)) gen(k+1);
}
}
int main()
{
in>>n;
gen(1);
return 0;
}