#include <fstream>

using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");

int n,sol[10001],j,fv[10001];

void beck (int k)
{
    int i;
    if(k==n+1){for(i=1;i<=n;i++)g<<sol[i]<<" ";g<<'\n';}
    else if(k<=n)
    {
        for(i=1;i<=n;i++)
        {
          sol[k]=i;
          int ok=1;
          for(j=k-1;j>=1;j--)if(sol[j]==sol[k])ok=0;
          if(ok==1)beck(k+1);
        }

    }
}

int main()
{
    f>>n;
    beck(1);
    return 0;
}