#include <iostream>
#include <fstream>
#define nr 10

using namespace std;

ifstream f("permutari.in");
ofstream g("permutari.out");
bool v[nr];
int n,k;
int st[nr];

void backtracking(int k)
{   int i;
    if(k==n+1)
    {for(i=1;i<=n;++i)
     g<<st[i]<<" ";
     g<<"\n";
     return;}
    for(i=1;i<=n;++i)
    {
        if(v[i]==0)
        {
            st[k]=i;
            v[i]=1;
            backtracking(k+1);
            v[i]=0;
        }
    }
}

int main()
{
    f>>n;
    backtracking(1);
    f.close();
    g.close();
    return 0;
}