#include <cstdio>

using namespace std;

int n,vaz[10],v[10];

void back_tracking(int poz)
{
    if(poz==n+1)
    {
        for(int i=1;i<=n;i++) printf("%d ",v[i]);
        printf("\n");
    }
    else
    {
        for(int i=1;i<=n;i++)
            if(vaz[i]==0)
            {
                vaz[i]=1;
                v[poz]=i;
                back_tracking(poz+1);
                vaz[i]=0;
            }
    }
}

int main()
{
    freopen("permutari.in","r",stdin);
    freopen("permutari.out","w",stdout);
    scanf("%d",&n);
    back_tracking(1);
    return 0;
}