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