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# include <iostream>
# include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int n, viz[100], sol[100];
void bkt(int k)
{
int i;
if(k==n+1)
{
for(i=1; i<=n; i++)
g<<sol[i]<<' ';
g<<'\n';
}
else
{
for(i=1; i<=n; i++)
{
if(!viz[i])
{
viz[i]++;
sol[k]=i;
bkt(k+1);
viz[i]=0;
}
}
}
}
int main()
{
f>>n;
bkt(1);
f.close();
g.close();
return 0;
}