#include<iostream>
#include <fstream>
using namespace std;
int a[19],b[19];
ifstream f("permutari.in");
ofstream g("permutari.out");

void back(int k,int c)
{
    int i;
    if(k-1 == c)
    {
        for( i = 1; i <= c; i++)
            g<<a[i]<<" ";
        g<<"\n";
    }
    else
    {
        for(int  i = 1; i <= c; i++)
            if(!b[i])
            {
                a[k] = i;
                b[i] = 1;
                back(k+1,c);
                b[i] = 0;
            }
    }
}

int main()
{

    int n;
    f>>n;
    back(1,n);

}