#include<stdio.h>
int n,vec1[18];
bool vec2[18];
int rec(int x)
{
    int i;
    if(x==n+1)
    {
        for(i=1;i<=n;i++)
		{
            printf("%d ", vec1[i]);
		}
        printf("\n");
    }
    for(i=1;i<=n;i++)
    {
        if(vec2[i]==false)
        {
            vec2[i]=true;
            vec1[x]=i;
            rec(x+1);
            vec2[i]=false;
        }
    }
}
int main(void)
{
    freopen("permutari.in","r",stdin);
    freopen("permutari.out","w",stdout);
    scanf("%d",&n);
    rec(1);
    return 0;
}