#include <iostream>
#include <cstdio>
using namespace std;
FILE *intrare,*iesire;
int n,v[100],fr[100];

void backtracking (int pos)
{
    int i;
    if (pos==n)
    {
        for (i=0; i<=n-1; ++i)
        {
            fprintf(iesire,"%d ",v[i]);
        }
        fprintf(iesire,"\n");
    }
    else
    {
        for (i=1; i<=n; ++i)
        {
            if (fr[i]==0)
            {
                v[pos]=i;
                fr[v[pos]]++;
                backtracking(pos+1);
                fr[v[pos]]=0;
            }
        }
    }
}

int main()
{
    intrare=fopen("permutari.in","r");
    iesire=fopen("permutari.out","w");
    fscanf(intrare,"%d",&n);
    backtracking(0);
}