#include<cstdio>
using namespace std;
int n,v[10];
bool a[10];
void scrie()
{
    int i;
    for(i=1;i<=n;++i) printf("%d ",v[i]);
    printf("\n");
}

int main()
{
    freopen("permutari.in","r",stdin);
    freopen("permutari.out","w",stdout);
    scanf("%d",&n);
    int k=1;
    while(k)
    {
        ++v[k];
        if(v[k]<=n)
        {
            if(!a[v[k]])
            {
                a[v[k]]=true;
                if(k==n) scrie();
                v[++k]=0;
            }

        }
        else
        {
            a[v[--k]]=false;
        }

    }
    return 0;
}