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