#include <cstdio>

using namespace std;

int n,v[9];

void afisare()
{
    for(int i=1;i<=n;i++)
        printf("%i ",v[i]);
    printf("\n");
}

bool verificare(int x)
{
    for(int i=1;i<=x-1;i++)
    {
        if(v[i] == v[x])
        {
            return false;
        }
    }
    return true;
}

void backtrack(int x)
{
    for(int i=1;i<=n;i++)
    {
        v[x] = i;
        if(verificare(x) == true)
        {
            if(x == n)
                afisare();
            else
                backtrack(x+1);
        }
    }
}

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