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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int n,viz[10],sir[10];
void backtracking(int k){
if(k==n+1){
for(int i=1;i<=n;i++){
g<<sir[i]<<' ';
}
g<<'\n';
return;
}
for(int i=1;i<=n;i++){
if(!viz[i]){
viz[i]=1;
sir[k]=i;
backtracking(k+1);
viz[i]=0;
}
}
}
int main(){
f>>n;
backtracking(1);
f.close();
g.close();
}