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#include <fstream>
using namespace std;
ifstream cin("permutari.in");
ofstream cout("permutari.out");
int n, i, j, x[10], f[10];
void backtrack(int pas) {
if (pas==n+1) {
for (int i=1;i<=n;i++)
cout<<x[i]<<" ";
cout<<"\n";
}
else
for (int i=1;i<=n;i++)
if (f[i]==0) {
x[pas]=i;
f[i]=1;
backtrack(pas+1);
f[i]=0;
}
}
int main() {
cin>>n;
backtrack(1);
}