#include <iostream>
#include <cstdio>
using namespace std;
int P[100],n;
bool V[100];
void bk(int l)
{   int i;
    if (l<=n)
        for ( i=1;i<=n;i++)
         {
            if (V[i]==false)
                {
                    V[i]=true;
                    P[l]=i;
                    bk(l+1);
                    P[l]=0;
                    V[i]=false;
                }
         }
    else
       {
           for ( i=1;i<=n;i++) printf("%d ",P[i]);
            printf("\n");
       }
}
int main()
{
    freopen("permutari.in","r",stdin);
    freopen("permutari.out","w",stdout);
    scanf("%d",&n);
    bk(1);
}