#include<stdio.h>

int n,a[100],b[100];


void back(int k)
{
	int i,j;
	if(k==n+1)
	{
		for(j=1;j<=n;j++)
			{
				printf("%d",a[j]);
                printf(" ");
            }
        printf("\n");
	}
	else
	{
		for(i=1;i<=n;i++)
			{
				if(!b[i])
				{
					a[k]=i;
                    b[i]=1;
					back(k+1);
                    b[i]=0;
                }
            }
    }
}

int main()
{
	freopen("permutari.in","r",stdin);
	freopen("permutari.out","w",stdout);

	scanf("%d",&n);
	back(1);
    return 0;
}