#include<stdio.h>
using namespace std; int n; int st[20],ok[20];
void BKT(int k)
{
    int i;
    if(k==n){for(i=1;i<=n;i++)printf("%d ",st[i]);printf("\n");} else
    for(i=1;i<=n;i++)
        if(ok[i]==0){
            k++;st[k]=i;
            ok[i]=1;BKT(k);
            k--;ok[i]=0;
            }
}
int main()
{
    freopen("date.in","r",stdin);
    freopen("date.out","w",stdout);

    scanf("%d",&n);
    BKT(0);

    return 0;
}