#include <bits/stdc++.h>

using namespace std;

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

void backt(int k)
{
    if (k==n+1)
    {
        for (int i=1;i<=n;++i)
            printf("%d ",v[i]);
        printf("\n");
    }
    for (int i=1;i<=n;++i)
        if (!viz[i])
    {
        v[k]=i;
        viz[i]=1;
        backt(k+1);
        viz[i]=0;
    }
}

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