#include<stdio.h>

int n,a[10],ex[10];

void back(int i)
{int k,x;
//printf("111 %d \n",n);
     for(k=1;k<=n;k++)
     {a[i]=k;
                      if(ex[k]==0)
     {
                      
                      ex[k]=1;
                      if(i==n)
                      {
                              for(x=1;x<=n;x++)
                              printf("%d ",a[x]);
                              printf("\n");
                              ex[k]=0;
                              }
                              else
                              {back(i+1);
                              ex[k]=0;
                              }
                              }
                              }
                              }
int main ()
{
    freopen("permutari.in","r",stdin);
    freopen("permutari.out","w",stdout);
    scanf("%d",&n);
    back(1);
    return 0;
}