#include<stdio.h> 

int a[19],b[19];

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

int main()  
{   
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout); 
    int n,p;
    scanf("%d %d",&n,&p);
    back(1,n,p);  
    fclose(stdin); fclose(stdout);  
    return 0;
}