#include<bits/stdc++.h>using namespace std;#define ll long long#define pi (4*atan(1.0))#define eps 1e-14const int N=2e5+10,M=4e6+10,inf=1e9+10,mod=1e9+7;const ll INF=1e18+10;int a[N];int main(){    int n;    scanf("%d",&n);    for(int i=1;i<=n;i++)    a[i]=i;    do    {        for(int i=1;i<n;i++)        printf("%d ",a[i]);        printf("%d\n",a[n]);    }while(next_permutation(a+1,a+n+1));    return 0;}