#include<cstdio>
using namespace std;
int perm[10],n,vc[10];
void backtracking(int nivel)
{
    int i;
    if(nivel==n+1)
    {
        for(i=1; i<=n; i++)
        {
            printf("%d",perm[i]);
            if(i==n)
                printf("\n");
            else
                printf(" ");
        }
        return;
    }
    for(i=1; i<=n; i++)
        if(vc[i]==0)
        {
            perm[nivel]=i;
            vc[i]=1;
            backtracking(nivel+1);
            vc[i]=0;
        }
}
int main()
{
    freopen("permutari.in", "r", stdin);
    freopen("permutari.out", "w", stdout);
    scanf("%d",&n);
    backtracking(1);
    return 0;
}