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#include <iostream>
#include <vector>
using namespace std;
int n;
vector<int>permutare;
bool exista[10];
void backtracking(int val)
{
if(val>n)
{
for(int x:permutare)
cout<<x<<" ";
cout<<'\n';
return;
}
else
{
for(int i=1; i<=n; i++)
{
if(!exista[i])
{
exista[i]=1;
permutare.push_back(i);
backtracking(val+1);
exista[i]=0;
permutare.pop_back();
}
}
}
}
int main()
{
cin>>n;
backtracking(1);
return 0;
}