#include <cstdio>
FILE *g=fopen("permutari.in","r");
FILE *z=fopen("permutari.out","w");
using namespace std;
int st[9000],n;
int valid(int p)
{
    int i;
    for(i=1;i<=p-1;i++)
    {
        if(st[p]==st[i])
        return 0;
    }
    return 1;
}
void afisare()
{
    for(int i=1;i<=n;i++)
    fprintf(z,"%d ",st[i]);
    fprintf(z,"\n");
}
void back(int k)
{
    int i;
    for(i=1;i<=n;i++)
    {
        st[k]=i;
        if(valid(k)==1)
        {
            if(k==n)
            afisare();
            back(k+1);
        }

    }
}
int main()
{
    fscanf(g,"%d",&n);
    fclose(g);
    back(1);
    fclose(z);
    return 0;
}