#include<iostream>
#include<stdio.h>
using namespace std;
int sol[100],n;
FILE *f,*g;
int valid(int k)
{int i;
    for(i=1;i<k;i++)
        if(sol[k]==sol[i]) return 0;
        return 1;
}
int back(int k)
{
    int i;
    if(k==n+1)
    {for(i=1;i<=n;i++)
        fprintf(g,"%d ",sol[i]);
        fprintf(g,"\n");
    }
    else
    {sol[k]=0;
        while(sol[k]<n)
            {sol[k]++;
        if(valid(k))
        back(k+1);
            }
    }
}
int main()
{f=fopen("permutari.in","r");
g=fopen("permutari.out","w");
    fscanf(f,"%d",&n);
    back(1);
}