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